Question # 1

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

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P.E.

K.E

Gravitational energy

Electrical P.E.

The conductivity of a conductor is independent of the

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Electric charge

Electric potential

Electric field

Internal resistance

In which form energy in an inductance coil is stored.

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Heat energy

Light energy

Magnetic energy

Nuclear energy

A forward based p-n semiconductor diode is called.

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Photodiode

Photovoltaic cell

Amplifier

Ligh emitted diode

Charge carriers in thermocouples are.

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Anions

Cations

Electrons

Protons

Two unchanged objects A and B are rubbed against each other, when object B is placed near a negatively charged object C the two objects repel each other Which of these statements is true abut object A.

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It remains uncharged

It becomes positively charged

It becomes negatively charged

It is unpredictable

It is deduced that a piece of metal is already a magnet if

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A copper wire is attracted to it

A copper wire is repelled by it

One end of a compass is repelled by it

Both ends of a compass needle are attracted to it.

The advantage of LEDs over filament lamp is their

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Small size

Reliability

High operating speed

All of the above

The direction of electric field line surround the test charge -q id

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Parallel

Perpendicular

Radially outward

Radially inward

Magnetic fields do not interact with

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Stationary electric charges

Stationary permanent magnets

Moving electric charges

Moving permanent magnets

What is the traditional name for a capacitor

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Choke

Condenser

Transformer

Inductor

The property of an object that causes it to create a magnetic field in opposition to an externally applied magnetic field is.

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Paramagnetism

Diamagnetism

Ferromagnetism

Demagnetism

Capacitance is define das

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VC

Q/V

QV

V/Q

The negative of the potential gradient is

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Potential energy

Electrostatic force

Electric field intensity

Electromotive force

A magnet is pushed horizontally towards a coil of insulated wire inducting an emf in the coilin which direction does the coil try to move.

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Downwards

Upwards

Away from the magnet

Towards the magnet

A device used to measure the strain of an object and it is a type of resistor that changes value with applied strain is a

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thermistor

Strain gauge

Thermocouple

Potentiometer

Which of the following remains unaffected in a magnetic field.

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a particles

b partciles

gama particles

Electrons

What is measured by the energy dissipated when a source drives a unit charge round a complete circuit.

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Electromotive force

Potential difference

Power

Resistance

A galvanometer can be converted into voltmeter by connecting in series with the galvanometer a

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Low resistance

High resistance

Resistance of intermediate range

Shunt

Which method of charging is involved in making lightning.

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Induction

Friction

Contact

Convection

A heater which is to be used on a 250 V mains circuit, has a 5 A fuse in its plug Which of the following is the most powerful heater that can be used with this fuse.

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150 W

500 W

1,000 W

2,000 W

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