Question

if a 12 ohm Micron resistance coil is added to 12 volt battery and current flow 30 minutes then calculate the amount of heat produced​

Answer 1

HEY MATE HERE IS UR ANSWER..

RESISTANCE(R) = 12 ohm

P.D. = 12 volt

TIME = 30 min.

since, V= IR. ( BY OHMS LAW )

SO, I = V/ R

= 12 / 12 = 1 ampere

Now , since, H= I²RT

SO, H = 1² X 12 X 30

H = 360 JOULES .

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Answer 2

Answer:

Current = V / R

= 12 / 25 = 0.48 ampere.

Heat energy = I2Rt

= (0.48)2 x 25 x 60

= 345.6 Joules.

Explanation:

Given : A resistance of 25 ohm is connected to a 12 V battery.

To find : Calculate the heat energy in joules generated per minute?

Solution :

We have given,

Resistance R= 25 ohm

Voltage V= 12 V

Time T= 1 minute = 60 sec

We know,

Where, I is the current

The formula of heat energy is given by,

Substitute the value in the formula,

Therefore, The heat energy generated per minute is 345.6 Joules.

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