Question

When a potential difference of 1.2 words is applied across a conductor the current flowing in net is 0.25 ampere calculate the resistance of conductor

Answer 1

Answer:

4.8 ohms

Explanation:

Given :

• Potential difference across the conductor = 1.2 volts

• Current through the conductor = 0.25 Amperes

To find :

• Net resistance of the conductor

Using the ohms law, which says : V=I×R

1.2=0.25×R

R=1.2/0.25

R=120/25

R=4.8 ohms

The equivalent or the net resistance across the circuit is equal to 4.8 ohms

Extra:

• Equivalent resistance for resistors in series =R1+R2

• Equivalent resistance for resistors in parallel = R1×R2/R1+R2

Answer 2

Answer :

Given that potential difference of 1.2 volts is applied across a conductor , the flowing in net is 0.25 A .

We have to find resistance of conductor.

From the data we have :

Potential difference (V) = 1.2 v

Current (I) = 0.25 A

Resistance (R) = ?

We know Ohm's law. As per his law, potential difference is the product of current flowing and resistance.

→ V = I × R

Substituting values,

→ 1.2 = 0.25 × R

→ R = 1.2/0.25

→ R = 4.8

→ R = 4.8Ω

Therefore,

∴ Resistance in conductor = 4.8Ω

Some more formulas :

→ Net resistance in series :

R(S) = R₁ + R₂ + R₃ + ...................

→ Net resistance in parallel :

1/R(P) = 1/R₁ + 1/R₂ + 1/R₃ + ...................