Question

a lamp consume 500j of electrical energy in 20 second what is power​

Answer 1

Given:-

• Energy Consumed ,E = 500J

• Timr taken , t = 20 s

To Find:-

• Power of lamp.

Solution:-

As we know that Power is defined as the energy consumed by an appliance in per unit time

• Power = Energy/time

• P = E/t

Substitute the value we get

→ P = 500/20

→ P = 25 W

∴ The power of the lamp is 25 Watt.

Answer 2

$\sf \bull \huge{ \bold{ \underline{Given :}}} \\ \\ \\ </p><p></p><p> \sf \implies \large \: Energy \: consumed \: by \: lamp \: = 500 \: Joule </p><p> \\ \\ </p><p></p><p> \sf \implies \large \: Time \: taken = 20 \: second \\ \\ \\ </p><p></p><p></p><p> \tt \huge \bull{ \bold{ \underline{To \: find : }}} \\ \\ \\ </p><p></p><p> \sf \implies \large \: { \boxed{ \red{ \bold{ \underline{Power = \frac{energy}{time}}}}}} \\ \\ \\ </p><p></p><p> \bf \bull \huge{ \bold{ \underline{Solution }}} \\ \\ \\ </p><p></p><p> \sf \implies \large \: Power = \cancel \frac{500}{20} \\ \\ </p><p></p><p> \sf \implies \large \: power = \cancel \frac{50}{2} \\ \\ </p><p> \sf \implies \large \: { \bold{ \boxed{ \underline{ \orange{power = 25 \: j {s}^{ - 1}}}}}}$