contestada

How much current is in a circult that includes a 9.0-volt battery and a bulb with a resistance of 4.0 ohms?
A.
0.44 amps
B.
36 amps
C. 2.3 amps
D. 13 amps

Respuesta :

Answer:

Current, I = 2.3 A

Explanation:

We have,

Voltage of the battery in a circuit is 9 volts

Resistance of the circuit is 4 ohms

It is required to find the current in a circuit. When the voltage and the resistance of the circuit is given then we can find the current in it is given by Ohm's law as :

[tex]V=IR[/tex]

I is electric current

[tex]I=\dfrac{V}{R}\\\\I=\dfrac{9}{4}\\\\I=2.25\ A[/tex]

or

I = 2.3 A

So, the current in the circuit is 2.3 A.

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