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If the length of filament of a heater is reduced by , the power of the heater will

a)

Increase by about

b)

Increase by about

c)

Increase by about

d)

Decrease by about

Question ID - 151011 :-

If the length of filament of a heater is reduced by , the power of the heater will

a)

Increase by about

b)

Increase by about

c)

Increase by about

d)

Decrease by about

1 Answer
5876 Votes
3537
Answer Key : (b) -

(b)

% change in power


Next Question :

For a given plate-voltage, the plate current in a triode is maximum when the potential of

a)

The grid is positive and plate is negative

b)

The grid is positive and plate is positive

c)

The grid is zero and plate is positive

d)

The grid is negative and plate is positive

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