Question

help ur peer by solving Their question​

Answer 1

• Total Resistance across the Parallel combination,
• 1/Re = 1/R₁ + 1/R₂
• ∴ 1/Re = 5/30

∴ Re = 6

• Now, Total Resistance = 6 + 24 = 30
• Using Ohm's law,
• I = V/R = 21/30

= 0.7 A.

• Means this much current will Reach in Parallel combination and also in the series part.
• Now, Potential given to 24 Ohm resistor, = 24 × 0.7 = 16.8 V.

Now, Potential given to Parallel combination = 21 - 16.8 = 4.2 V.

• Now, This much Potential will Reach both the Resistor of 15 Ω and 10 Ω.

Therefore Using Ohm's law,

• V = I × R
• 4.2 = I × 10
• ∴ I = 0.42 A

• Hence, Correct answer is Option (d).

Answer 2

Answer:

option D

Step-by-step explanation:

Total Resistance across the Parallel combination,

1/Re = 1/R₁ + 1/R₂

∴ 1/Re = 5/30

∴ Re = 6

Now, Total Resistance = 6 + 24 = 30

Using Ohm's law,

I = V/R = 21/30

= 0.7 A.

Means this much current will Reach in Parallel combination and also in the series part.

Now, Potential given to 24 Ohm resistor, = 24 × 0.7 = 16.8 V.

Now, Potential given to Parallel combination = 21 - 16.8 = 4.2 V.

Now, This much Potential will Reach both the Resistor of 15 Ω and 10 Ω.

Therefore Using Ohm's law,

V = I × R

4.2 = I × 10

∴ I = 0.42 A

Hence, Correct answer is Option (d).