Question # 1

Electric power:

Choose an answer

Vx1

V²x1

V/1

V/1²

The unit of conductivity is:

Choose an answer

Ohm^-3m^-1

Ohm m^-1

Both a and b

Ohm m^-1

A battery move a charge of 40 C around a circuit at constant rate in 20 Sec. The current will be.

Choose an answer

2 A

0.5 A

80 A

800 A

When a wire of length 'l' and resistance R is cut into two equal parts then resistivity of each part.

Choose an answer

is doubled

Remains the same

Is halved

Is one fourth

The value of maximum output power is?

Choose an answer

E/4R

E²/4R

E/4R²

Non of above

The free electrons experience force.

Choose an answer

In direction of -E

In direction of E

Both A and B

All of the above

Thermosouple is an arrangement of two different metals:

Choose an answer

Two convert heat energy into electrical energy

To produce more heat

To convert heat energy into chemical energy

To convert electrical energy into heat energy

One ohm is equal to

Choose an answer

VC-1

CV-1

AC-1

VA^-1

What is the resistance of carbon resistor which has band brown black brown.

Choose an answer

100 Ohm

1000 Ohm

10 Ohm

1.0 Ohm

During electrolysis process, density of CuSO₄ solution

Choose an answer

Remains constant

Decreased

Increased

None of these

The fraction change in resistance per Kelvin is known as:

Choose an answer

Temperature coefficient of Resistance

Coefficient of voltage of change

Thermal expansion

All of the above

If a charge Q flows through any cross section of the conductor in time t, the current I is

Choose an answer

I=Qt

Specific resistance of a material depends upon.

Choose an answer

Length

Area

Temperature

Both A and B

If the resistance of 500 Ohm have fourth band of silver colour then its upper maximum resistance will be.

Choose an answer

600 Ohm

550 Ohm

450 Ohm

400 Ohm

By increasing the temperature of conductor, the flow rate of charges.

Choose an answer

Increase

Remains constant

Decreases

Changes exponentially

For non-ohmic devices, the graph between V and I is

Choose an answer

Not a straight line

A straight line

A curve

All of above

For ohmic device the graph between V and I is.

Choose an answer

A straight line

Curve

Hyperbola

Parabola

The powers of two electric bulbs are 100w and 200w. Which are connected to power supply of 220 V. The ratio of resistance of their filament will be:

Choose an answer

1:2

2:1

1:3

4:3

More Classes

Other Links

Physics FSC Part 2 Chapter 13 Online MCQ's 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

Choose an answer

Choose an answer