Question

Two resistors of resistance 10ohm and 12ohm is parallel with a 30V battery find (a) effective resistance of the circuit (b) current in the circuit​

Answer 1

Given,

• Two resistors R1 = 10 Ω and R2 = 12 Ω are connecting in parallel combination.
• Potential difference (v) = 30 V

To Find,

• (A) Effective resistance of the circuit.
• (B) Current in the circuit.

According to question,

Case (I), Effective resistance of the circuit.

We know that,

★ Rp = 1/R1 + 1/R2

⇒ Rp = 1/10 + 1/12

⇒ Rp = 6 + 5/60

⇒ Rp = 11/60

⇒ Rp = 0.18 Ω ★

Case (II), Current in the circuit.

We know that,

★ V = IR

[ Here, R = Effective resistance (Rp) ]

⇒ 30 = I × 0.18

⇒ I = 30/0.18

⇒ I = 166.6 A ★

Hence Solved !!