EXERCISE
Abhishek Chandra Physics Solutions for EXERCISE
Simple step-by-step solutions to EXERCISE questions of Magnetic Effects of Electric Current from Eduwiser's CBSE PHYSICS FOR CLASS X. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from EXERCISE with Hints & Solutions
Which rule is used to determine the direction of force experienced by a current-carrying straight wire kept in a magnetic field which is perpendicular to it? (Choose out of Fleming's right-hand rule, Fleming's left-hand rule, Maxwell's right-hand thumb rule)
State the rule used to determine the direction of the magnetic field produced by a current-carrying circular loop of wire. (Choose out of Fleming's right-hand rule, Fleming's left-hand rule, Maxwell's right-hand thumb rule)
Which effect of current is utilised in detecting a current-carrying wire concealed in a wall?
(Choose from: heating effect / magnetic effect / chemical effect)
We know that when electric current passes through a wire, a magnetic field is produced. Why doesn't the wire of your study lamp attract pieces of iron when the lamp is switched on?
A student performs an experiment to study the magnetic effect of current around a current-carrying straight conductor. He reports that
(i) the direction of deflection of the North Pole of a compass needle kept at a given point near the conductor remains unaffected even when the terminals of the battery sending current in the wire are interchanged.
(ii) For a given battery, the degree of deflection of the North Pole of the compass decreases when it is kept at a point farther away from the conductor.
Which of the two observations is correct and why?
A current-carrying conductor is placed perpendicular to the magnetic field of a horseshoe magnet. The conductor is displaced upwards. State what will happen to the displacement of the conductor when
(a) the current in the conductor is increased.
A current-carrying conductor is placed perpendicular to the magnetic field of a horseshoe magnet. The conductor is displaced upwards. State what will happen to the displacement of the conductor when
(b) The horseshoe magnet is replaced by a stronger magnet.
A current-carrying conductor is placed perpendicular to the magnetic field of a horseshoe magnet. The conductor is displaced upwards. State what will happen to the displacement of the conductor when the length of the conductor is increased.
