$(a)$ Define one watt.
$(b)$ $A$ lamp consumes $1000 \ J$ of electrical energy in $10 \ s$. What is its power?
$(b)$ $A$ lamp consumes $1000 \ J$ of electrical energy in $10 \ s$. What is its power?
(N/A) The power of a device is said to be $1 \ W$ if it consumes energy at the rate of $1 \ J$ per second.
$(b)$ Given:
Energy $(E) = 1000 \ J$
Time $(t) = 10 \ s$
Power $(P) = E / t$
$P = 1000 \ J / 10 \ s = 100 \ W$
Thus,the power of the lamp is $100 \ W$.
$(b)$ Given:
Energy $(E) = 1000 \ J$
Time $(t) = 10 \ s$
Power $(P) = E / t$
$P = 1000 \ J / 10 \ s = 100 \ W$
Thus,the power of the lamp is $100 \ W$.
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