Question

A current of 2A is flowing through a resistance of 3. Calculate the potential difference

Answer 1

Given:

• Current,I = 2 A

• Resistance, R = 3 ohms

To be calculated:

Calculate the potential difference, V ?

Formula used:

V = I × R

Solution:

V = I × R

★ Substituting the values in the above formula,we get

V = 2 A × 3 ohms

V = 6 volt

Thus,the potential difference is 6 volts.

Knowledge Enhancer :

★Potential difference: Work done by bringing unit positive charge from one particular point to another.

• S.I unit of potential difference ⇒ Volt ( v )

• Scalar quantity

• Instrument used to measure potential difference is volumeter.

Answer 2

GIVEN:

• Current = 2A
• Resistance = 3Ω

TO FIND:

• Potential difference

SOLUTION:

Using formula

V = I × R

Where

• V : potential difference = ?
• I : current = 2A
• R : Resistance = 3Ω

Substituting the values we have

→ V = 2 × 3

→ V = 6 volts

.°. Hence, Potential difference = 6V

MORE INFORMATION:

♦ Potential difference: Potential difference is the electric tension is the difference between the two points of current

♦ S.I unit : Volts (V) = kgm²/s³ I¹

♦ Dimensional formula : [M¹L²T-³I-¹]

♦ Quantity : Scalar quantity