Question # 1

The electric intensity outside the two oppositely charged parallel metal plates is

Choose an answer

Maximum

Minimum

Zero

Infinite

The capacitance of a parallel plate capacitor depends upon

Choose an answer

Area of the plates

Separation between the plates

Medium between the plates

All of the above

For two resistance wires joined in parallel, the resultant resistance is 6/5 ohm. When one of the resistance wire breaks, the effective resistance becomes 2 ohm. The resistance of the broken wire is

Choose an answer

3/5 ohm

2 ohm

6/5 ohm

3 ohm

Current provided by a battery is maximum when

Choose an answer

Internal resistance equal to external resistance

Internal resistance is greater than external resistance

Internal resistance is less then external resistance

None of these

The dot product of electric field intensity E and vector area A is called

Choose an answer

Electric potential

Electric flux

Electric field

Magnetic field

The energy required to charge a capacitor of 5μF by connecting D.C. source of 20 KV is

Choose an answer

10 KJ

5 KJ

2 KJ

1 KJ

If we plot graph between potential difference (V) and current (I) obeying ohm's law, it will give us

Choose an answer

parabola

straight line

hyper bola

ellipse

The SI unit of capacitance is

Choose an answer

Farad

Henry

Ohm

Volt

The conductivity of a superconductor is

Choose an answer

Infinite

Very large

Very small

Zero

A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 KV, its kinetic energy will be

Choose an answer

1840 KeV

1/1840 KeV

1 KeV

920 KeV

A charge Q is divided into two parts q and Q - q and separated by a distance R. The force of repulsion between them will be maximum when

Choose an answer

q = Q/4

q = Q/2

q = !

None of these

Consider a spherical shell of metal at he centre of which a positive point charge is kept

Choose an answer

The electric filed is zero outside the shell

The electric field is zero everywhere

The electric field is zero in the region inside the shell

The electric field is non-zero in both regions outside and inside the shell

The electric lines of force are

Choose an answer

Imaginary

Physically existing everywhere

Physically existing near the charge

All of the above

An alpha particle is accelerated through a potential difference of 10⁶volt. Its kinetic energy will be

Choose an answer

1 MeV

2 MeV

4 MeV

8 MeV

The electric field will be uniform

Choose an answer

Near a positive point charge

Near a negative point charge

Between two oppositely charged parallel metal plates

None of above

At any point on the right bisector of the line joining two equal and opposite charges

Choose an answer

At electric field is zero

The electric potential is zero

The electric potential decreases with increasing distance from the centre

The electric field is perpendicular to the line joining the charges

More Classes

Other Links

ECAT Physics Chapter 12 Electrostatics Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer