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The power of heater is 750 W at . What will be its power at  if ?

a)

400 W

b)

990 W

c)

250 W

d)

1500 W


Question ID - 151581 :-

The power of heater is 750 W at . What will be its power at  if ?

a)

400 W

b)

990 W

c)

250 W

d)

1500 W

1 Answer
5876 Votes
3537

Answer Key : (b) -

(b)

 and

Now,

So,

or  = 990 W



Next Question :

Masses of the three wires of same material are in the ratio of  and their lengths in the ratio of . Electrical resistance of these wires will be in the ratio of

a)

b)

c)

d)


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