Capacitive reactance of a capacitor for ...

Capacitive reactance of a capacitor for a D.C. circuit is.......

`omegaC`

`1/(omegaC)`

infinite

Text Solution

Verified by Experts

The correct Answer is:

`X_C=1/(2pifC)` for D.C. supply f=0
`X_C=1/0`= infinite

Topper's Solved these Questions

ALTERNATING CURRENTS
KUMAR PRAKASHAN|Exercise SECTION-D MCQs (COMPETITIVE EXAMS)|64 Videos
ALTERNATING CURRENTS
KUMAR PRAKASHAN|Exercise SECTION-C NCERT EXEMPLAR (Long Answer)|5 Videos
ATOMS
KUMAR PRAKASHAN|Exercise Section-D -MCQs asked in GUJCET / Board Exam|34 Videos

Similar Questions

Explore conceptually related problems

The reactance of a capacitor of 1/pi in are A.C. circuit having frequency of 50Hz is .....

The value of capacitive reactance of capacitor X_C . If the values of capacitance and frequency becomes double, the value of capacitive reactance becomes ………

A pure capacitor of capacitive reactance of 10 Omega is connected to an A.C. source. If the frequency of a source is doubled, the capacitive reactance will be ....... Omega .

Two plates of parallel plate capacitor are joined inside with metal rod. The capacitance of a capacitor is ........... .

Voltage V_1 across the capacitor in above circuit is

What is capacitive reactance for L-C-R series AC circuit? Write its formula and SI unit.

A choke coil is connected to an AC source. Some power is dissipated in coil. Now a capacitor is connected in series with the coil and source is same, then average power dissipated in the circuit does not changes. If ratio of inductive reactance of coil and capacitive reactance of capacitor is 1/x then find x

If angular frequency of an A.C. source used in L-C-R circuit is decreased, then inductive reactance ....... and capacitive reactance......

Write definition of capacitance of capacitor.

Explain why the reactance provided by a capacitor to an alternating current decreases with increasing frequency.

KUMAR PRAKASHAN-ALTERNATING CURRENTS -SECTION-D MCQs (DARPAN BASED ON TEXTBOOK)

An LCR series circuit with L =0.5H, C=10xx10^(-6) F, R=100 Omega is c...
Text Solution
|
In an L-C-R circuit , R=sqrt7Omega, XL=11Omega and XC=8Omega , then th...
Text Solution
|
Capacitive reactance of a capacitor for a D.C. circuit is.......
Text Solution
|
The expression for the A.C. supply voltage of 234V and frequency of 50...
Text Solution
|
The time taken by A.C. voltage of frequency 50 Hz to change from zero ...
Text Solution
|
When current passing through a series connection of 100Omega resistanc...
Text Solution
|
When 10 A current passes through 12Omega resistance, maximum voltage a...
Text Solution
|
When 1 muF capacitor is connected across V = 100 sqrt2 sin(100t)Volt, ...
Text Solution
|
Unit of omegaC is
Text Solution
|
20Omega resistance is connected to V = 220sin (100pit) voltage source...
Text Solution
|
Above graphs are for reactance versu frequency of A.C. emf's frequency...
Text Solution
|
The resistance of a coil for D.C. is in ohms. In A.C. the resistance ....
Text Solution
|
A coil having inductance of 1 mH is connected to an A.C. source, its i...
Text Solution
|
In a series D.C. circuit has core of a reactance of 8Omega and a resis...
Text Solution
|
In an A.C. circuit of frequency 400/pi Hz is of capacitance CmuF and r...
Text Solution
|
In an L-C-R circuit , R=sqrt7Omega, XL=11Omega and XC=8Omega , then th...
Text Solution
|
A coil of self inductance of 1H and resistance 200Omega is connected t...
Text Solution
|
The maximum value of an A.C. voltage coming in our houses is ………. % mo...
Text Solution
|
The ratio of r.m.s. value of an A.C. voltage and its mean value over h...
Text Solution
|
An alternating voltage V = 400 sin (500omegat)V is connected to a 0.2 ...
Text Solution
|