Question

A transistor radio uses 2 amps of current when it is run by a 9 volt battery. What is the resistance in the radio circuit

Answer 1

Step-by-step explanation:

In the picture.

I hope that it's a clear solution.

Answer 2

If the current in the circuit is 2 amperes and the voltage is 9-volt. Then the resistance in the radio circuit is 4.5 ohm.

What is Ohm's law?

Ohm's law states that for a flowing current the potential difference of the circuit is directly proportional to the current flowing in it. Thus,

V = RI

Here,

V is the potential difference and

I is the current.

It can be written as,

Here,

R is the resistance of the circuit.

A transistor radio uses 2 amps of current when it is run by a 9-volt battery.

Then the resistance will be

9 = 2R

R = 4.5 ohm

Learn more about the Ohm's law here;

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