Year: 2021

Important Questions for Class 12 Physics Chapter 4 Moving Charges and Magnetism

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Moving Charges and Magnetism Class 12 Important Questions Very Short Answer Type Question 1.What is the direction of the force acting on a charged particle q, moving with a velocity v→ in a uniform magnetic field B? (Delhi)Answer:The direction of the force acting on a charged particle q, moving with a velocity v→ in a uniformmagnetic field B→ is perpendicular to …

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Important Questions for Class 12 Physics Chapter 3 Current Electricity

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Current Electricity Class 12 Important Questions Very Short Answer Type Question 1.The plot of the variation of potential difference across a combination of three identical cells in series, versus current is as shown in the figure. What is the emf of each cell? (Delhi 2008)Answer:Total emf of three cells in series = P.D corresponding to …

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Important Questions for Class 12 Physics Chapter 2 Electrostatic Potential and Capacitance

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Electrostatic Potential and Capacitance Class 12 Important Questions Very Short Answer Type Question 1.A 500 µC charge is at the centre of a square of side 10 cm. Find the work done in moving a charge of 10 µC between two diagonally opposite points on the square. (Delhi 2008)Answer:The work done in moving a charge …

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Important Questions for Class 12 Physics Chapter 1 Electric Charges and Fields

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Electric Charges and Fields Class 12 Important Questions Very Short Answer Type Question 1.Which orientation of an electric dipole in a uniform electric field would correspond to stable equilibrium ? (All India 2008)Answer:When dipole moment vector is parallel to electric field vectorP→∥E→ Question 2.If the radius of the Gaussian surface enclosing a charge is halved, …

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