Question # 1

Give the number of factors which affect the ability of a capacitor to store charge.

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2

3

4

5

What is the voltage across a 6Ω resistor when 3 A of current passes through it?

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2 V

9 V

18 V

36 V

The time period of mass attached with a spring can be calculated by:

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T = 2π√L/g

T = 1/T

T =2π√g/L

T = 2π√m/k

The device which converts digital quantities into analog quantities is called:

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ADC

DAC

ACD

CAD

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

What is the direction of the magnetic field lines inside a bar magnet?

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From north pole to south pole

From south pole to north pole

From side to side

There are no magnetic field lines.

The distance of image from mirror is represented by:

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q

p

F

m

AND gate can be formed by using two:

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NOT gates

OR gates

NOR gates

Nand gates

The speed of sound was accurately measured in:

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1736

1737

1738

1739

In electric motor, the brushes are made of:

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Lead

Graphite

Iron

Wood

the time period of body attached to spring depend on:

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mass

gravitational constant

length

amplitude

The refractive index of internal coating of optical fibre is:

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1.56

1.51

1.53

1.58

The totally reflectiing prism one angle is of:

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45^o

90^o

180^o

120^o

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