# Electrostatics conceptual and Numerical Qns Online Test

A capacitor of capacitance 100 µF is connected to a discharge tube. The capacitor is charged by a 3 V battery (as shown in the given figure). The total energy stored in the capacitor is discharged through the discharge tube in 0.5 ms.

What is the power rating of the discharge tube?

Two capacitors of capacitances 6 µF and 4 µF are connected in series to each other. A supply voltage of potential 220 V is connected across combination.

What is the energy stored in 6 µF capacitor?

The length of an electric dipole is 6 cm. The axis of the dipole makes an angle ? with a uniform electric field of intensity 3×10 to the power10 N/C. It experiences a torque of magnitude 6 Nm. The charge of the dipole is ±5×10 to the power-9 C.

What is the value of angle??

Two capacitors of capacitances 5 × 10 to the power -7 F and 2 × 10 to the power -7 F are connected in series. The magnitude of charge on each plate of the capacitors is 6 × 10 to the power -6 C.

What is the total potential drop across the given system of capacitors?

In a parallel plate capacitor, two parallel plates each of area 0.25 square metre are placed close to each other. A substance of dielectric constant 2.1 is inserted in the separation between the plates. The capacitance of the parallel plate capacitor is 4.65 × 10 to the power of -10 F.

What is the distance between the two plates?

When air is replaced by a dielectric medium of dielectric constant K, the maximum force of attraction between two charges separated by a distance

Two equal and similar charges are placed along a straight line. A third equal and similar charge is placed midway between the two charges. Then system will

Two equal and similar charges are placed along a straight line. A third charge equal but opposite to the other two charges is placed midway between them. The system will

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Electrostatics conceptual and Numerical Qns
to check the level of understanding the chapter with quick multiple choice questions - helpful for I.I.T;. J.E.E.E. E.; E.A.M.C.E.T.; CBSE; SAT; State Board; Advanced level and other students appearing or preparing for Physics examination.

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What is important difference between electrostatic force and gravitational force?

1516 days 20 hours 36 minutes ago

GOOD QUESTION FOR IIT LEVEL.

3900 days 8 hours 37 minutes ago

GOOD QUESTION FOR IIT LEVEL.

3900 days 8 hours 37 minutes ago

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