Question

The potential difference across the terminals of a cell is 1.5 volt. It is connected with a resistance of 30 Ω. Calculate the current flowing through the circuit.

Answer 1

by ohm's law we know:
V=IR
1.5=I×30
I=1.5÷30
I=0.05A

Answer 2

Answer:

The potential difference across the terminals of a cell is 1.5 volt. It is connected with a resistance of 30 Ω. The current flowing through the circuit will be $0.05A$

Explanation:

• We can solve this question by applying Ohm's law.

• According to ohm's law, voltage or the potential difference is directly proportional to the current flowing.

• If V is the voltage and I is current, ohm's law becomes,

        $V\propto I$

        Or

        $V = IR$

        That is,  

         $I = \frac{V}{R}$    ...(1)

        where R - the resistance of the material.

 

• In the question, it is given that,

       $V = 1.5\ V$

      $R = 30\Omega$

       Using equation (1),

      $I = \frac{1.5}{30} = 0.05 A$

• So the current flowing  will be  $0.05\ A$