# Can You charge a capacitor without a resistor?

### Contents

Yes, you can charge a capacitor without a resistor. You can charge a capacitor with an inductor in place of a resistor. If you place a diode in series with the inductor, then you can charge the capacitor to a higher voltage than the source. **Do **you have to charge a capacitor before using it? Always charge the capacitor first. ^{[1]}

Similarly, people ask, What is the difference between a resistor and a capacitor? That is, **a resistor **has an inductance, **a capacitor **has **a **resistance etc. No matter how **you **try to minimise these effects, some will always remain. Your **capacitor **in the question will have its own small internal resistance, and also the battery or power supply that **you **use to **charge **the **capacitor **will also have its own resistance. ^{[3]}

Furthermore, Why do capacitors have an inductance and series resistance? In addition, the area enclosed by the source, conductors, and **capacitor **is not zero and so there is **a **self-inductance of the circuit and resistance of the conductors that **can **limit the instantaneous current and its rate of change. Further, physical capacitors actually have an associated inductance and series resistance. ^{[3]}

Similarly one may ask, Can a capacitor be connected to a battery? Ideally, **a capacitor **is made of two plates separated by an isolator. Consequently, ideally there is an open circuit there. If **you **connect the **capacitor **to **a **battery, as no current **can **flow, each plate would ideally inmediately acquire the same potential as the battery. ^{[3]}

Accordingly, Can capacitor discharge through no load? means the theoretical case "... **a capacitor **not having the battery voltage (e.g. an unloaded one) is directly connected to **a **battery **without **impedance...", this case is the generalized case of **Capacitor **discharging through no load? , where the battery has simply 0 voltage resulting in **a **short, since an ideal battery has no (inner) impedance. ^{[3]}

## What is the difference between a resistor and a capacitor?

Similarly, people ask, Can You charge a capacitor without a resistor? Yes, you can charge a capacitor without a resistor. You can charge a capacitor with an inductor in place of a resistor. If you place a diode in series with the inductor, then you can charge the capacitor to a higher voltage than the source. **Do **you have to charge a capacitor before using it? Always charge the capacitor first. ^{[1]}

Also Know, How does a resistor affect the voltage on a capacitor? **How does** **a resistor** **affect** a **capacitor**? This reduces **the voltage**, VR, that remains across the **resistor**. Therefore the charging current will be reduced slightly, and the **capacitor** will charge more slowly than before. This will continue until the **capacitor** has charged to **the voltage** E, and there is no further current flow in this circuit. ^{[0]}

Secondly, How does capacitor act like resistor? The energy stored in the capacitor remains. If the capacitor terminals are connected with a resistor, then the charges can move, so there is a current. The energy that was stored in the capacitor is converted to heat in the resistor, the voltage decreases, the charges become less imbalanced, and the field weakens. ^{[9]}

Thereof, Is a resistor the same as a capacitor? The difference between Capacitor and Resistor is that while a capacitor is an electronic device used to store electrical energy in the form of charges, a resistor is an electronic device used to resist or block the flow of current in a circuit. ^{[8]}

## Why do capacitors have an inductance and series resistance?

Furthermore, What is the difference between C1 and R1 in capacitor? C1 is the nominal capacitor, R1 is the equivalent **series resistance**, L1 is the equivalent **series inductance and **R2 is the leakage **resistance**. You will note we now **have **a damped **series **resonant circuit; below self resonance it is capacitive, at resonance it is resistive **and **above it is inductive. ^{[7]}

Also to know is, What is the self-inductance of a capacitor? This leads to self-**inductance **for any conductor with a varying current. As a capacitor is a low impedance at AC (the precise amount depends on frequency of course) then a real capacitor looks like this: C1 is the nominal capacitor, R1 is the equivalent **series resistance**, L1 is the equivalent **series inductance and **R2 is the leakage **resistance**. ^{[7]}

Also to know is, Why do circuits have capacitance and capacitance but no resistor? This is because every circuit has resistance, capacitance, and inductance even if they don’t contain resistors, capacitors, or inductors. For example, even a simple conducting wire has some amount of resistance, capacitance, and inductance that all depend on the material composition, gauge (i.e. thickness), construction, and shape. ^{[8]}

Just so, Why do we study resistors capacitors and inductors? The study of resistors, capacitors and inductors allows us to gain a deeper intuition of some of the most important principles that affect the design and operation every circuit. This is because every circuit has resistance, capacitance, and inductance even if they don’t contain resistors, capacitors, or inductors. ^{[8]}

## Can a capacitor be connected to a battery?

Secondly, How to make powerful battery from capacitor?

- Solder all the+ve terminals of the 4700uF Capacitors together with each other&solder all the -ve terminals of the capacitors together as well. (parallel config)
- Solder the positive terminal of the super
**capacitor**config**to**the Vin of the 7805 IC&solder the -ve terminal**to**the Ground of the IC. - Solder
**a**50nH inductor**to**the output of the IC.

^{[4]}

Secondly, How can a capacitor be used as a power source? - **Capacitors are used **to cancel out the lagging current effects from the motors and transformers. - Capacitor can reduce the system losses and help provide voltage support. - Another benefit of the capacitor is how they can reduce the total current flowing through a wire thus leaving capacity in the conductors **for **additional load. ^{[6]}

Also asked, Do you have to charge a capacitor before using it? This **capacitor **must be pre-charged before the flash can be used. No: If you are using a **capacitor **for most other things capacitors are used for, such as creating a high or low pass filter for a circuit, no. The **capacitor **performs its filtering duties based on the f Continue Reading Marvin Kottke , Non BS Electronics and Associated Stuff, Unpapered ^{[0]}

Simply so, What is the difference between a capacitor and a battery? **The **only difference **is **a **capacitor **discharges its **voltage **much quicker **than **a battery, but it's **the **same concept in how they both supply **voltage **to a circuit. A circuit designer wouldn't just use any **voltage **for a circuit but a specific **voltage **which **is **needed for **the **circuit. ^{[7]}

## Can capacitor discharge through no load?

Likewise, people ask, How do you determine if a capacitor will charge or discharge? If you have a positive voltage X across the plates, and apply voltage Y: the **capacitor **will charge if Y > X and **discharge **if X > Y. There's the classic RC circuit analysis which should be taught right at the beginning of learning electronics. Show activity on this post. ^{[7]}

Thereof, Why does a capacitor discharge when voltage drops? The **capacitor discharge **when the voltage drops from the main voltage level which it connected to like it connected between (5v and GND ) if voltage drops to 4.1v then the **capacitor discharge **some of its stored charge ,the drop in voltage may caused by many effects like increase in a **load **current due to internal resistance of non-ideal source . ^{[7]}

One may also ask, What is the capacitor discharge cycle? The **Capacitor **discharging cycle that **a capacitor **goes through is the cycle, or period of time, it takes for **a capacitor **to **discharge **of its charge and **voltage**. The **Capacitor Discharge **Equation is an equation which calculates the **voltage **which **a capacitor **discharges to after **a **certain time period has elapsed. ^{[5]}

Herein, What is a capacitor discharging graph? **The **Capacitor Discharging Graph **is the **a graph that shows how many time constants it takes for a capacitor **to **discharge **to **a given percentage of **the **applied voltage. A capacitor discharging graph really shows **to what **voltage a capacitor will discharge **to **after a given amount of time has elapsed. ^{[5]}

### References

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- physics.stackexchange.com, Can a capacitor be charged without having resistance in the circuit?.
- How To Make A Power Bank Using Super Capacitor, watelectrical.com.
- What do capacitors do in a power supply? - Quora, quora.com.
- Do you have to precharge a capacitor? - Quora, quora.com.
- What does the Voltage Rating on a Capacitor Mean?, learningaboutelectronics.com.
- physics.stackexchange.com, Can a capacitor be charged without having resistance in the circuit?.
- voltage - When do capacitors "decide" to discharge? - Electrical, electronics.stackexchange.com.
- voltage - When do capacitors "decide" to discharge? - Electrical, electronics.stackexchange.com.
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### About The Author

Hello, my name is João Cardoso. I am a 32 years old Blogger & certified Computer Engineer from Portugal and currently doing Masters in Networks Security from the University of Lisbon.

#### Related

- Is a resistor the same as a capacitor?
- How does capacitor act like resistor?
- How does a resistor affect the voltage on a capacitor?
- Can You charge a capacitor without a resistor?
- Why do we study resistors capacitors and inductors?
- Why do circuits have capacitance and capacitance but no resistor?
- What is the self-inductance of a capacitor?
- What is the difference between C1 and R1 in capacitor?
- What is the difference between a capacitor and a battery?
- Do you have to charge a capacitor before using it?
- How can a capacitor be used as a power source?
- How to make powerful battery from capacitor?
- What is a capacitor discharging graph?
- What is the capacitor discharge cycle?
- Why does a capacitor discharge when voltage drops?
- How do you determine if a capacitor will charge or discharge?