Q7. The current flowing through the two bulbs marked as 60 W, 240 V each when connected in series wi

Q: What is the correct answer for CUET UG Physics Q7?

The correct answer is a. First, calculate the resistance of a single bulb. The power (P) of a bulb is given by P = V²/R, where V is the rated voltage and R is the resistance.For one bulb: P = 60 W, V = 240 V.R = V²/P = (240 V)² / 60 W = 57600 / 60 = 960 Ω.When two identical bulbs are connected in series, their resistances add up. Total resistance (R_total) = R₁ + R₂ = 960 Ω + 960 Ω = 1920 Ω.The series combination is conne

Q: Q7. The current flowing through the two bulbs marked as 60 W, 240 V each when connected in series with 240 V source is: (a) 0.125 A (b) 0.25 A (c) 4 A (d) 2 A

The correct answer is a. First, calculate the resistance of a single bulb. The power (P) of a bulb is given by P = V²/R, where V is the rated voltage and R is the resistance.For one bulb: P = 60 W, V = 240 V.R = V²/P = (240 V)² / 60 W = 57600 / 60 = 960 Ω.When two identical bulbs are connected in series, their resistances add up. Total resistance (R_total) = R₁ + R₂ = 960 Ω + 960 Ω = 1920 Ω.The series combination is conne

Q: What are the options for this CUET UG Physics question?

A. 0.125 A · B. 0.25 A · C. 4 A · D. 2 A

Question

Q7. The current flowing through the two bulbs marked as 60 W, 240 V each when connected in series with 240 V source is:
(a) 0.125 A
(b) 0.25 A
(c) 4 A
(d) 2 A

FirstInTest · Accepted Answer

First, calculate the resistance of a single bulb. The power (P) of a bulb is given by P = V²/R, where V is the rated voltage and R is the resistance.For one bulb: P = 60 W, V = 240 V.R = V²/P = (240 V)² / 60 W = 57600 / 60 = 960 Ω.When two identical bulbs are connected in series, their resistances add up. Total resistance (R_total) = R₁ + R₂ = 960 Ω + 960 Ω = 1920 Ω.The series combination is connected to a 240 V source. According to Ohm's law, the current (I) flowing through the circuit is I = V_source / R_total.I = 240 V / 1920 Ω = 1/8 A = 0.125 A.

Answer

0.125 A

Answer

0.25 A

Answer

4 A

Answer

2 A

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