An electric heater of power 3 kW is used one minute-Find the energy supply by the heater-

Question

Toppr Admin · Accepted Answer

Given that-Power P-3kw -Time t-1min-60s -We know that-xA0- P-Et-xA0-E-P-xD7-t -xA0-E-3-xD7-103-xD7-60 -xA0-E-180-xD7-103 -xA0-E-18-xD7-104J -Hence- the energy supply by the heater is 18-xD7-104J-xA0-

An electric heater of power 3 kW is used for one minute.Find the energy supply by the heater.

Given that,

Power $P = 3 k w$

Time $t = 1 min = 60 s$

We know that,

$P = \frac{E}{t}$

$E = P \times t$

$E = 3 \times 10^{3} \times 60$

$E = 180 \times 10^{3}$

$E = 18 \times 10^{4} J$

Hence, the energy supply by the heater is $18 \times 10^{4} J$

An electric heater of power 3 kW is used for one minute.Find the energy supply by the heater.

Given that, Power P=3kw Time t=1min=60s We know that, P=Et E=P×t E=3×103×60 E=180×103 E=18×104J Hence, the energy supply by the heater is 18×104J

Given that,

Power $P = 3 k w$

Time $t = 1 min = 60 s$

We know that,

$P = \frac{E}{t}$

$E = P \times t$

$E = 3 \times 10^{3} \times 60$

$E = 180 \times 10^{3}$

$E = 18 \times 10^{4} J$

Hence, the energy supply by the heater is $18 \times 10^{4} J$