Question # 1

The conventional current in a circuit is defined as " current which passes from a point at higher potential to a point at lower potential as if it represent a movement of

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negative charges

positive charges

protons

electrons

10⁶electrons are moving through a wire per second, the current developed is

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1.6 x 10^-19

1 A

1.6 x 10^-15A

10⁶A

An eV is unit of:

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Potential

Energy

Work

Power

Both (B) and(C)

For transmission of both transverse and longitudinal waves, we can use:

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Solid

Gas

Plasma

None of these

magnetic field is a:

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Vector quantity

Scalar quantity

Scalar as well as scalar quantity

Any of (A) or (B)

Neither (A) nor (B)

The rain drop falling from the sky reach the ground with

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Constant terminal velocity

Constant gravitational acceleration

Variable acceleration

acceleration greater than g

When an object moves with a uniform angular velocity, then its instantaneous angular velocity is equal to:

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Zero

Its average velocity

Its angular displacement

None of these

Two bullets are fired simultaneously, horizontally and with different speeds from the same place. Which bullet will hit the ground first?

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The faster one

Depends on their mass

The slower one

Both will reach simultaneously

An A.C varies as a function of

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Current

Voltage

Time

Charge

The restoring force is _____ and opposite to the applied force within ______,:

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Equal, elastic limit

Different, the walls of the laboratory

Different, elastic limit

None of these

If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:

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Force

Energy

work

impulse

A ballistic missile moves under the result of the superposition of

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one independent motion

two independent motions

one dependent motion

two dependent motions

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If the thickness of the film and angle of incidence are such that two reflected waves cancel each other the film will look

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Dark

Bright

May be partly bright

None of these

Uniform electric field can be mapped with electric field lines which are

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Parallel

Equally spaced

Parallel and equally spaced

None

A force of 10N is acting along y-axis.Its component along x-axis is

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10N

20N

100N

ZeroN

First law of thermodynamics is merely a statement of law of conversation of:

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Energy

Angular momentum

Change

Linear momentum

All changes which occur suddenly are irreversible through

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Conduction

Convection

Radiation

All of these

A pendulum bob is suspended inside a lift moving upward with constant velocity.If mass of the bob is 50 g then its weight inside the compartment is

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Zero

0.1 N

0.5 N

0.05 N

Wb/m² is equal to

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Henry

Watt

Tesla

Dynes

The error in the measurement of radius of sphere is 0.3% The maximum error in the measurement of its volume

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0.6%

0.9%

0.3%

(4/3) π(0.3)²

The vertical component of velocity of a projectile during its motion is minimum

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at the time of projection

at the highest point

just before hitting the plane of projection

all of them

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