Question:
An alternating voltage of 220 V, 50 Hz frequency is applied across a capacitor of capacitance 2 $\mu$F. The impedence of the circuit is
An alternating voltage of 220 V, 50 Hz frequency is applied across a capacitor of capacitance 2 $\mu$F. The impedence of the circuit is
Updated On: Apr 15, 2024
- $\frac{\pi}{5000}$
- $\frac{1000}{\pi}$
- $500 \pi$
- $\frac{5000}{\pi}$
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Impedence of a capacitor is $X_{C}=1/ \omega C$
$X_{C}=\frac{1}{2 \pi f C}=\frac{1}{2 \pi\times50\times2\times10^{-6}} =\frac{5000}{\pi} .$
$X_{C}=\frac{1}{2 \pi f C}=\frac{1}{2 \pi\times50\times2\times10^{-6}} =\frac{5000}{\pi} .$
Was this answer helpful?
1
0
Top Questions on AC Voltage
- In \(AC\) circuit with source voltage \(E \) = \(20\) \(sin\; 1000 \;t\) is connected to series \(L-R\) circuit whose power factor is \(\frac{1}{\sqrt 2}\) If \(E = 25\) \(sin \;2000\) \(t\), the new power factor is :
- JEE Main - 2024
- Physics
- AC Voltage
- Alternating voltage and current in circuit is given as \(V = (100 \;sin \;ωt)\) volt
\(I = 100\;sin\bigg(ωt+\frac{π}{3}\bigg)mA\)
Find average power dissipated in circuit.- JEE Main - 2024
- Physics
- AC Voltage
- A student is provided with a variable voltage source V, a test resistor Rr = 10Ω, two identical galvanometers G1 and G2 and two additional resistors, R1 = 10MΩ and R2 = 0.001Ω. For conducting an experiment to verify ohms law, the most suitable circuit is
- JEE Main - 2023
- Physics
- AC Voltage
- The I–V characteristics of a p-n junction diode in forward bias is shown in the figure. The ratio of dynamic resistance, corresponding to forward bias voltage of 2 V and 4 V respectively, is
- JEE Main - 2022
- Physics
- AC Voltage
- The maximum and minimum voltage of an amplitude modulated signal are 60 V and 20 V, respectively. The percentage modulation index will be:
- JEE Main - 2022
- Physics
- AC Voltage
View More Questions
Questions Asked in VITEEE exam
- Two identical blocks A and B, each of mass 'm' resting on a smooth floor are connected by a light spring of natural length L and spring constant K, with the spring at its natural length. A third identical block 'C' (mass m) moving with a speed v along the line joining A and B collides with A. the maximum compression in the spring is
- VITEEE - 2023
- work, energy and power
- Assertion :
The binding energy of the nucleus increases with the increase in atomic number.
Reason :
Heavier elements have a greater number of non-radioactive isotopes than radioactive isotopes. - The half-life of radioactive radon is 3.8 days. The time at the end of which \(\frac{1}{20}th\) of the Radon sample will remain undecayed is (given log10e=0.4343)
- Which element has more electron gain enthalpy among chalcogen group?
- VITEEE - 2022
- sulphur
- Coin is tossed till heads is obtained what is expectation of no. of coin tosses
- VITEEE - 2022
- Random Variables
View More Questions
Concepts Used:
AC Voltage
When voltage changes its direction after every half cycle is known as alternating voltage. The current flows in the circuit at that time are known as alternating current. The alternating current(AC) follows the sine function which changes its polarity concerning time. Most of the electrical devices are operating on the ac voltage.
