Question

What is the resistance in a circuit that carries a 0.75 A current when powered by a 1.5 V battery? A.) 0.50 Ω B.) 1.1 Ω C.) 2.0 Ω D.) 2.3 Ω

Answer 1

Answer: Option (C) is the correct answer.

Step-by-step explanation:

According to ohm's law, current flowing through a circuit is directly proportional to the voltage over resistance.

Mathematically,
`I = (V)/(R)`

where, I = current

V = voltage

R = resistance

Therefore, it is given that current is 0.75 A and voltage is 1.5 V. Thus, calculate the resistance as follows.

`I = (V)/(R)`

or,
`R = (V)/(I)`

=
`(1.5 V)/(0.75 A)`

=
`(15 V * 10)/(75 A)`

= 2 ohms

Hence, we can conclude that resistance in the circuit is 2 ohms.

Answer 2

It is 2.0 Ω because R=V/I so 1.5V/.75A = 2Ω