Question # 1

How Galvanometer is connected in circuit to detect current:

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In series

In parallel

Fixed

Variable

The rate of flow of charge through any cross-sectional area is called:

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potential difference

Energy

Coulomb

Electric current

The presence of fish by the other fish can be detected by:

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Magnetic field

Electric field

Gravitational field

All of above

The turn ratios of a transformer is 10. It means.

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I_s = 10I_p

N_s = N_p

N_s = 10 N_p

V_s =V_p /10

The half life of plutonium²³⁶Pu₉₄is:

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2.00 years

2.35 years

2.79 years

2.85 years

The output of an AND gate is only 1, when:

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Both of its inputs are zero

Anyone of the two inputs is zero

Both of its inputs are 1

Anyone of the two inputs is 1

Mathematical formula of capacitance of a capacitor is:

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C = QV

C = Q/V

C = V/Q

C = V2/Q

electric field is weak when:

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lines are far apart

lines are close together

no lines are present

lines are directed outside

If current is flowing from bottom end to the top end in a wire, according to right hand rule the direction of line of forces would be:

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Anti-clock wise

Clock wise

Left and Right

Along the conductor.

The cathode ray oscilloscope consists of main parts:

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Two

Three

Four

Five

The principal focus of a concave mirror is:

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Virtual

Real

Imaginary

Dual aspect

Electric field lines:

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always cross each other

never cross each other

cross each other inthe region of strong field

cross each other in the region of weak field

The A.C used in Pakistan has frequency:

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60 Hz

30 Hz

50 Hz

130 Hz

In compound microscope, the objective have focal length than eye-piece:

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Smaller

Larger

Equal

Equal and larger

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