In a meter bridge, the balancing condition is R / S = L / (100 – L). Given R = 2 Ω and L = 40 cm, we get 2 / S = 40 / 60. Solving for S, S ...
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Let the EMF of the cell be E and internal resistance be r. Using Ohm’s law:For 2Ω resistor: E = 0.9 (2 + r) For 7 resistor E = 0.3 (7 + r) Equating both: 0.9(2 + r) = 0.3 ...
Take your Class 10th Maths preparation to the next level with NCERT solutions and MCQ-based questions from Chapter 11: Areas Related to Circles. Solve exercise questions, short-answer problems and detailed explanations to master concepts like areas of sectors, segments and ...
The resistance of the bulb is R = 220/100 = 484Ω. When operated at 110V, power consumed is P ′ = 110²/484 = 25W. Correct answer: (a) 25 W. Class 12th Science Physics NCERT MCQ Questions NCERT Books MCQ Questions ...
Current I is given by I = Q/t. Student A: Q = 300C. t = 60s, so I = 300/60 = 5A(correct). Student B: Q = (3.125 × 10¹⁹) × (1.6 × 10⁻¹⁹) = 5C, t = Is, so I ...