Moving Charges and Magnetism questions
775 published questions with worked solutions.
- A wire carrying current 'I' along x axis has length 'L' and it is kept in a magnetic field B( i +2 j -2 k ) ,T. The magnitude of...
- An arc of a circle of radius 'R' subtends an angle 2 at the centre. It carries a current I. The magnetic field at the centre will...
- Two identical galvanometers are converted into an ammeter and into milliammeter. For the same current, the value of shunt of the...
- A current 'I' flows in anticlockwise direction in a circular arc of a wire having ( 3 4 )^ th of circumference of a circle of...
- When a resistance 200 is connected in series with a galvanometer of resistance 'G', its range is 'V'. To triple its range, a...
- The magnetic induction along the axis of a toroidal solenoid is independent of
- The coil P and Q each of radius R carry currents I and 8 I respectively in same direction. Those coils are lying in perpendicular...
- In the cyclotron, as radius of the circular path of the charged particle increases, ( = angular velocity, V = linear velocity)
- The magnetic field at a distance 'r' from a long straight wire carrying current I is 0.4 tesla. The magnetic field at a distance...
- With a resistance 'X' connected in series with a galvanometer of resistance 100 , , it acts as a voltmeter of range 0 - 15 V. To...
- The magnetic field at perpendicular distance 'r' form a long wire carrying current 'I' is 'B' The magnetic field at perpendicular...
- The magnetic field at the center of circular coil carrying 'I' for a single turn of a given length of wire is 'B' The same wire...
- By connecting a resistance of 980 in series with a galvanometer, it is converted into a voltmeter of a certain range. When the...
- The ratio of magnetic field at the centre of the current carrying circular loop and its magnetic moment is 'x'. When both the...
- Two long conductors separated by a distance 'd' carry currents 'I_1' and 'I_2' in the same directions. They exert a force 'F' on...
- A particle carrying a charge equal to 1000 times the charge on an electron, is rotating one rotation per second in a circular...
- If only 5% of the total current is to be passed through galvanometer of resistance G, then the resistance of the shunt will be
- Two long parallel wires carrying currents 4A and 3A in opposite directions are placed at 5cm from each other. A point P is at...
- Two long straight wires A and B carrying equal current 'I' were kept parallel to each other at distance 'd' apart. Magnitude of...
- The scale of a galvanometer is divided into 160 equal divisions. The galvanometer shows full scale deflection of 16 mA and...
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