Question

I provided the question above.

Answer 1

Step-by-step explanation:

since it is connected in parallel combination

use this formula

`(1)/(R) = (1)/(R1) + (1)/(R2)`

`(1)/(R) = (1)/(2) + (1)/(4)`

`(1)/(R) = (4+2)/(2)`

`(1)/(R) = (6)/(2)`

`(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.