Question

A Assertion: Using 4 kWh of power is equivalent to using 2000 W of
power for 2 h.
B) Reason: The voltage drop across a resistor is simply a difference of
potential across that resistor.​

Answer 1

Answer:

A is true but B is not the correct explanation of A

Answer 2

Reason is not a correct explanation of assertion.

Explanation:

Assertion,

Using 4 kWh of power is equivalent to using 2000 W of  power for 2 h.

The energy consumed per unit time is called power delivered by a device. If power is 2000 W. In 2 hours power delivered will be :

$P=2000\ W\times 2\ h$

$P=4000\ Wh$

or

$P=4\ kWh$

Assertion is true.

Voltage across the resistor is equal to the potential difference between the two terminal of the resistor. Reason is also true. But reason is not a correct explanation of assertion.

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