Question

A torch bulb rated at 3v and 600mA. calculate it's 1) power 2) Resistance 3) energy consumed if it is lighted for 4hrs​

Answer 1

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Given:

VOLTAGE= V= 3 VOLTS

CURRENT= I = 600 mA= 600/1000=0.6 A.

Time=4hrs=4*60*60=14400seconds

P=?

R=?

E=?

A) CALCULATE POWER:

BY USING FORMULA, P= V*I

=3 *0.6

=1.8 W

B) CALCULATE RESISTANCE:

BY USING FORMULA, V=IR

R=V/I

=3/0.6

=3*10/6

=5ohms

C) CALCULATE ENERGY:

FORMULA: E= P x t

= 1.8 x 14400

=25920 Joules.

Thank you please and brainly too

Answer 2

Explanation:

Power =V•I

Resistance=V/I

Total energy=Power ×time (in seconds)

Rest are calculations