Electrostatics Test

Result

Electrostatics Test - 148

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

Two capacitors of capacitance C are connected in series. If one of them is filled with dielectric substance K, what is the effective capacitance?

A

B
C (K + 1)

C

D
None of these

Solution
Question 2
4 / -1

In the given circuit, a charge of + 80 µC is given to the upper plate of the 4 µF capacitor. Then, in the steady state, the charge on the upper plate of the 3 µF capacitor is

A
+ 32 µC

B
+ 48 µC

C
+ 40 µC

D
+ 80 µC

Solution
Question 3
4 / -1

An electric circuit requires a total capacitance of 2 µF across a potential of 1000 V. Large number of 1µF capacitances are available, each of which would breakdown, if the potential is more than 350 V. How many capacitances are required to make the circuit?

A
24

B
20

C
18

D
12

Solution
Question 4
4 / -1

Two identical parallel plate capacitors are placed in series and connected to a constant voltage source of V volt. If one of the capacitor is completely immersed in a liquid of dielectric constant K, then the potential difference between the plates of the other capacitor will change to

A

B

C

D

Solution
Question 5
4 / -1

Across each of two capacitors of capacitances 1µF and 4 µF, a potential difference of 10 V is applied. Then, positive plate of one is connected to the negative plate of the other and negative plate of one is connected to the positive plate of the other. After contact,

A
charge on each is zero

B
charge on each is same but non-zero

C
charge on each is different but non-zero

D
None of the above
Question 6
4 / -1

Two capacitors of capacity 6µF and 12µF in series are connected by potential of 150 V. The potential of capacitor of capacity 12µF will be

A
25 V

B
50 V

C
100 V

D
150 V

Solution
Question 7
4 / -1

The energy of a charged capacitor is U. Another identical capacitor is connected parallel to the first capacitor, after disconnecting the battery. The total energy of the system of these capacitors will be

A

B

C

D

Solution
Question 8
4 / -1

A 10 µF capacitor and a 20 µF capacitor are connected in series across a 200 V supply line. The charged capacitors are then disconnected from the line and reconnected with their positive plates together and negative plates together and no external voltage is applied. The potential difference across each capacitor is

A

B

C
400 V

D
200 V

Solution
Question 9
4 / -1

Three capacitors of capacitance C (µF) are connected in parallel to which a capacitor of capacitance C is connected in series. Effective capacitance is 3.75, then capacity of each capacitor is

A
4 µF

B
5 µF

C
6 µF

D
8 µF

Solution
Question 10
4 / -1

The charge deposited on 4µF capacitor, the circuit is

A
6 × 10^-6 C

B
12 × 10^-6 C

C
24 × 10^-6 C

D
36 × 10^-6 C

Solution