Calculate the resistance in a circuit in which a 9-volt batter produces 3 amperes.

Question

a. 3 ohms

b. 6 ohms

c. 9 ohms

d. 27 ohms

Answer 1

We find this by using Ohm's law.

I = V/R

I = Electrical current (amps)

V = Voltage

R = Resistance

So we know what the value for voltage and electrical current is so we plug the variables in.

3 = 9/R

So we want to isolate R so we can find its value. This is simple Pre-Algebra.

After doing the work your answer is 3 ohms.

Answer 2

a). 3 Ω....(R = V/I = 9/3 = 3 Ohms)

Answer 3

Ohms Law states:

I = V/R

where:

I = Current

V = Volts

R = Resistance

Solving for R:

R = V/I

Resistance = Volts / Current

To answer your question:

Resistance = 9 volts / 3 amps = 3 ohms

The answer is "C"

Good luck in your studies,

~ Mitch ~

Answer 4

I = E/R (I = Amps, E = Voltage, R = Resistance)

3 = 9/R

3R = 9

R = 9/3

R = 3ohms