Question

I provided the question above.

Answer 1

Answer:

Explanation:

since it is connected in parallel combination

use this formula

$\frac{1}{R} = \frac{1}{R1} + \frac{1}{R2}$

$\frac{1}{R} = \frac{1}{2} + \frac{1}{4}$

$\frac{1}{R} = \frac{4+2}{2}$

$\frac{1}{R} = \frac{6}{2}$

$\frac{1}{R} = 3$ ohm

therefore resistence = 3 ohm

then we should find power

P = VI

P = 12*3

P = 24 watt

now to find current use formula power = current * voltage

24 = current * 12

24/12 = current

2 = current

therefore current is 2 ampere (A).

to find potential difference (emf) use formula

V = IR

V = current * resistence

V = 2 * 3

V = 6 volt .

therefore potential difference is 6 volt.