Question

A flashlight uses two 1.5av batteries to provided a steady current of 0.5A in the filament.The resistance of the glowing filament is

Answer 1

Answer:

R = 6 ohm

Explanation:

The first, and perhaps most important, the relationship between current, voltage, and resistance is called Ohm's Law, discovered by Georg Simon Ohm

Ohm’s principal discovery was that the amount of electric current through a metal conductor in a circuit is directly proportional to the voltage impressed across it, for any given temperature

V = I x R;

Now in our case;

V = 1.5 + 1.5 = 3V

I = 0.5 A

R = V/I

R = 3/0.5

R = 6 ohm

Answer 2

Answer:$R=6 \Omega$

Explanation:

Given

voltage of battery =1.5 V

steady current(i)=0.5 A

as there are two batteries  so net voltage$=1.5\times 2=3 V$

and voltage=current \times resistance

$3=0.5\times R$

$R=6 \Omega$