C11. A solid non-conducting disc of mass m and radius R has total charge Q is...

 

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C11. A solid non-conducting disc of mass m and radius R has total charge Q is uniformly distributed on its surface. A light thin string is wound around the disc is connected to the light pulley P, as shown in figure. A block of same mass rest on smooth surface. Now uniform magnetic field given by B = Bot perpendicular into the plane of paper is switched on. The surface on which disc lies is sufficiently rough to ensure pure rolling. Then m, R Choose the correct answer 1. Tension in string wound around the disc is 4QB R 35 (1) (3) (1) QBOR 20 2. Angular acceleration of disc is (1) 4QBOR 70 QBO (3) 70m 3. Acceleration of block (3) QBO m 2QB₂R 35m (2) 4QBOR 41m (4) (2) (4) P₁ (2) (4) QBOR 35 4QBo 35m 2QB0 35m 20QB₂R 7 m 4QB R 35 m C11. A solid non-conducting disc of mass m and radius R has total charge Q is uniformly distributed on its surface. A light thin string is wound around the disc is connected to the light pulley P, as shown in figure. A block of same mass rest on smooth surface. Now uniform magnetic field given by B = Bot perpendicular into the plane of paper is switched on. The surface on which disc lies is sufficiently rough to ensure pure rolling. Then m, R Choose the correct answer 1. Tension in string wound around the disc is 4QB R 35 (1) (3) (1) QBOR 20 2. Angular acceleration of disc is (1) 4QBOR 70 QBO (3) 70m 3. Acceleration of block (3) QBO m 2QB₂R 35m (2) 4QBOR 41m (4) (2) (4) P₁ (2) (4) QBOR 35 4QBo 35m 2QB0 35m 20QB₂R 7 m 4QB R 35 m

Answer rating: 100% (QA)

General Guidance The answer provided below has been developed in a clear step by step manner Step 1 Given Mass of the disc m Radius of the disc R Tota... View the full answer