Question # 1

What is the properly of materials that responds at an atomic or subatomic level to an applied magnetic field.

Choose an answer

Magnetism

electroplating

Diamagnetism

Electrolysis

A radio tuning capacitor is.

Choose an answer

Cylindrical capacitor

Spherical capacitor

parallel plates capacitor

Cylindrical condenser

What is the range of values of power factor.

Choose an answer

0 to -1

0 to +1

0 to 2

2 to 3

A plug connoted to a table lamp contains a 3 A fuse Why is the fuse needed.

Choose an answer

To increase the resistance of the circuit

To make it easier for the current to flow

To protect the wiring form overheating

To reduce the voltage across thelamp

In comparison with the electrostatic force between two electrons the electrostatic force between two protons is.

Choose an answer

Zero

Smaller

Greater

Same

When a conductor situated in a dielectric is charted the energy resides.

Choose an answer

Only on the dielectric

Only on medium surrounding charge

On the dielectric and medium both

Only on the type of the charge

A resistor whose resistance decreases with increasing intensity is.

Choose an answer

Light dependent resistor

Thermistor

Thermocouple

Strain gauge

One volt is equal to.

Choose an answer

One joule per coulomb

One dyne per coulomb

One newton per coulomb

One watt second

When the frequency of A.C in L - C- R circuit is incrased the impedance of L-C-R circuit.

Choose an answer

Increase

Decrease

Remain unchanged

First decrease and then increases

The process of combining low frequency signals with high frequency radio waves is called.

Choose an answer

Modulation

Resonance

Fluctuation

Amplitude

When a positive charge is allowed to move from positive to negative plate, then it will gain

Choose an answer

P.E.

K.E

Gravitational energy

Electrical P.E.

A bulb of 100 W is connected to a 160 V supply What will be the power consumed.

Choose an answer

25 W

30 W

50 W

64 W

When X_c = X_l, this condition is called.

Choose an answer

Equality

Balanced

Resonance

Equlibrium

As electric field intensity is a potential gradient, if may be expressed ni the units of NC-1 or

Choose an answer

volt

Volt metre

Volt per metre

Joule

in the region where the field lines are parallel and equally spaced, the field is.

Choose an answer

Zero

Unirorm

Non uniform

Negative

A gallium atom is.

Choose an answer

Monvalent

Diavalent

Trivalent

Pentavalent

The phenomenon of exactly zero electrical resistance occurring in certain materials below a characteristics temperature is called.

Choose an answer

Resistivity

Conductivity

Super conductivity

Volume resistivity

What happens to the energy of a charged condenser is plate separation is increased.

Choose an answer

It decreases

It increases

It becomes zero

It remains unchanged

The cosine of the phase angle between the current and voltage in an A.C. circuit is called the

Choose an answer

Lead factor

Lag factor

Dissipation factor

Power factor

The Step up transformer

Choose an answer

Increase the input current

Increases the input voltage

Has more turns in the primary coil

Has less time in the secondary coil

An induced emf in a coil is independent of

Choose an answer

Time

Resistance

the number of turns in a coil

The charge in the magnetic flux

More Classes

Other Links

PPSC Physics Chapter 6 Electricity and Magnetism 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

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer