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3 years ago

A 75 A resistor in a circuit has a current flowing through it of 2.0 A. What is

Physics

1 answer:

Reptile [31]3 years ago

7 0

Answer:

The power dissipated by the resistor can be calculated as $P = I^{2} R$ .

Explanation:

Joules heating law states that any conductor passed with the electric current produces heating effect which is the electric power loss.

The given circuit has, $R = 75 ohm$ resistor (the unit is wrong i question because resistor's unit is ohm not Ampere).
Current flowing through the circuit is $I = 2.0 A$ .

By using joules heating theory, $P = I^{2} R$ ,

$or,$ $P = 2^{2} * 75$

$or,$ $P= 4*75$

$or$ , $P= 300 W$ .

So the power dissipated by the resistor in the circuit is 300 W.

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2 years ago

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4 years ago

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3 years ago

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Answer:

The change of the momentum of the ball is $-19.8\, \frac{mkg}{s}$

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4 years ago