In the circuit given below, a 100 W bulb B_1 and two 60 W bulbs B_2 and B_3, are connected to a 250 V direct current source. If W_1, W_2 and W_3 are…

Question

In the circuit given below, a 100 W bulb B_1 and two 60 W bulbs B_2 and B_3, are connected to a 250 V direct current source. If W_1, W_2 and W_3 are the powers of the three bulbs then, which of the following statements is corect?

MARKS Content Team · Accepted Answer

Correct answer: (D) W1 < W2 < W3. P = (V^2)/(R ) so, R = (V^2)/P ∴ R_1 = (V^2)/(100 ) and R_2 = R_3 = (V^2)/60 Now, W_1 = (250^2)/(R 1 + R 2^2) · R_1 W_2 = (250^2)/(R 1 + R 2^2) · R_2 and W_3 = (250^2)/R_3 W1 : W2 : W3 = 15 : 25 : 64 or W1 < W2 < W3 .

In the circuit given below, a $100 W$ bulb $B_{1}$ and two $60 W$ bulbs $B_{2}$ and $B_{3}$ , are connected to a $250 V$ direct current source. If $W_{1}$ , $W_{2}$ and $W_{3}$ are the powers of the three bulbs then, which of the following statements is corect?

Solution

More Current Electricity Questions

In the circuit given below, a 100 W bulb B1 and two 60 W bulbs B2 and B3, are connected to a 250 V direct current source. If W1, W2 and W3 are the powers of the three bulbs then, which of the following statements is corect?

Solution

More Current Electricity Questions

In the circuit given below, a $100 W$ bulb $B_{1}$ and two $60 W$ bulbs $B_{2}$ and $B_{3}$ , are connected to a $250 V$ direct current source. If $W_{1}$ , $W_{2}$ and $W_{3}$ are the powers of the three bulbs then, which of the following statements is corect?