A 6 V battery is connected to a 3 Ω resistor. Current is MCQ with Answer and Explanation

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A 6 V battery is connected to a 3 Ω resistor. Current is

A. 0.5 A

B. 3 A

C. 2 A

D. 18 A

Answer: Option C

Solution (By JKSSB Mock Tests)

I = V/R = 6/3 = 2 A.

This question belongs to: Science Physics

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Question #1

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The unit of magnetic field strength is

A. Tesla

B. Farad

C. Henry

D. Weber

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Correct Answer: Option A

Explanation:
Tesla (T) = N/(A·m) = Wb/m². Weber is magnetic flux. Henry is inductance. Farad is capacitance. Gauss is another unit (1 T = 10⁴ G).

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Question #2

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A pendulum has time period 2 s. If its length is increased by 4 times, new period is

A. 8 s

B. 1 s

C. 4 s

D. 2 s

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Correct Answer: Option C

Explanation:
T ∝ √L, L'=4L => T' = √4 T = 2×2 = 4 s.

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Question #3

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The unit of power is

A. Watt

B. Newton

C. Joule

D. Pascal

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Correct Answer: Option A

Explanation:
Watt (W) = Joule/second. SI unit of power. Horsepower is another unit (1 HP ≈ 746 W). Joule is energy, Newton force, Pascal pressure.

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