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Conductor ABC consist of two quarter circular path of radius R lies in X-Y plane and carries current I as shown. A uniform magnetic field B is switched on in the region that exert force F→=2IRB0k^ on conductor ABC. B→ can be

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Important Questions on Magnetic Effect of Current

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Beta Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-2>Q 32
Find the magnitude and direction of a force vector acting on a unit length of a thin wire, carrying a current, I=8.0 A, at a point O, if the wire is bent as shown in Figure i the curvature radius R=10 cm. Figure ii the distance between the long parallel segment of the wire l=20 cm. F1= force vector due to figure i F2= force vector due to figure ii

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Beta Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-2>Q 33
A stationary, circular wall clock has a face with a radius of 15 cm. Six turns of wire are wounded around its perimeter, the wire carries a current 2.0 A in the clockwise direction. The clock is located, where there is a constant, uniform external magnetic field of 70 mT (but the clock still keeps perfect time) at exactly 1:00 pm, the hour hand of the clock points in the direction of the external magnetic field
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Beta Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-2>Q 34
Consider the magnetic field produced by a finitely long current carrying wire
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Beta Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-2>Q 35
Which of the following statement is correct ?
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Beta Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-2>Q 36
Two identical charged particles enter a uniform magnetic field with same speed but at angles 30∘ and 60∘ with field. Let a, b and c be the ratio of their time periods, radii and pitches of the helical paths than
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Beta Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-2>Q 37
Consider the following statements regarding a charged particle in a magnetic field. Which of the statements are true ?
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Beta Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-2>Q 38
A particle of charge q and velocity v passes undeflected through a space with non-zero electric field E and magnetic field B. The undeflecting conditions will hold if
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Beta Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-2>Q 39
Two charged particle, A and B each of charge +e and masses 12 a.m.u. 13 amu respectively follow a circular trajectory in chamber, X after the velocity selector as shown in the figure. Both particles enter the velocity selector with speed, 1.5×106 m s−1. A uniform magnetic field of strength, 1.0 T is maintained within the chamber, X and in the velocity selector.

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