Question # 1

If the field is stronger than lines of force are to each other:

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Far away

Separated

Closer

No effect

Which instrument is used to detect current:

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Galvanometer

Voltmeter

Ammeter

Electroscope

Electric potential and e.m.f.:

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Are the same terms

Are the different terms

Have different units

Both b and c

The half -life of carbon is

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5730 years

5700 years

5720 years

572 years

1 volt is equal to:

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JC

JC^-1

JC^-2

JC^-3

If the displacement in spring is ‘x’ of mass “m” attached with a spring then restoring force is:

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F=ma

F=kx

F=-kx

F= m/a

Coulomb's law is mathematically stated as:

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F = k q1 q2/r3

F = k q2 q2 / r2

F = k q1 q2 / r

F = k q1 q2 / r2

What happens to the intensity or the brightness of the lamps connected in series as more and more lamps are added:

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Increases

Decreases

Remains the same

Cannot be predicted

The step-up transformer

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Increases the input current

Increase the input voltage

Has more turns in the primary

Has less turns in hte secondary coil

One byte is equal to:

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7 bits

5 bits

8 bits

9 bits

The reason carbon dating work is that.

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Plants and animals are such strong emitters of carbon 14

After a plant or animal dies, it stops in fresh carbon

There is so much non radioactive carbon dioxide in the air

When a plant or animal dies.

First voice signal was transmitted in the form of electrical signal in:

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1870

1875

1876

1880

When resistance are connected in series the current passing through them is .

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Different

Zero

The same

None of these

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