Question # 1

Specific resistance of silver = ________ x 10^-sOhm-meter

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5.25

2.75

1.69

1.62

The basic operations performed by a computer are.

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arithmetic operations

non arithmetic operations

logical operation

both a and c

What is the power rating of a lamp connector to a 12 V source when it carries 2.5 A:

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4.8W

14.5W

30W

60W

which is a major cause of fires and explosions at many places:

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match sticks

bombs

static electricity

magnetism

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

Resistance of a wire of conductor of 2 Ω resistance is doubled:

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4 Ω

6 Ω

8 Ω

10 Ω

The formula of time period of simple pendulum is:

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T = 2π √L/g

T = 2π (L/g)

T = 2π√1/g

T = 1/2π √L/g

the resistance of an ammeter should be:

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high

very high

low

constant

The product of frequency and time period is equal to:

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v

0

1

L

1 volt is equal to:

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JC

JC^-1

JC^-2

JC^-3

Hard disk is made of:

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Aluminium

Copper

Iron

Plastic

The 1st practical electric battery is known as:

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Voltaic

Pile

Voltaic pile

Voltaic cell

Simplest electrical circuits use:

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One wire

Two wires

Four wires

Five wires

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