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प्रश्न
In which of the following case does the electromagnetic induction occur?
The current is stopped in a wire held near a loop of wire .
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उत्तर
Yes.
संबंधित प्रश्न
Explain why, the core of an electromagnet should be of soft iron and not of steel.
Describe one experiment to demonstrate the phenomenon of electromagnetic induction.
Figure shows a long U-shaped wire of width l placed in a perpendicular magnetic field B. A wire of length l is slid on the U-shaped wire with a constant velocity v towards right. The resistance of all the wires is r per unit length. At t = 0, the sliding wire is close to the left edge of the U-shaped wire. (a) Calculate the force needed to keep the sliding wire moving with a constant velocity v. (b) If the force needed just after t = 0 is F0, find the time at which the force needed will be F0/2.0
Fill in the blanks by writing (i) Only soft iron, (ii) Only steel, (iii) Both soft-iron and steel for the material of core and/or magnet.
A. C. generator______.
Choose the correct option:
A conductor rod of length (l) is moving with velocity (v) in a direction normal to a uniform magnetic field (B). What will be the magnitude of induced emf produced between the ends of the moving conductor?
Which of the following scientist invented the rule of electromagnetic induction?
Find the odd one out and give its explanation.
State Fleming’s right-hand rule.
Show that Lenz’s law is in accordance with the law of conservation of energy.
Show that for a given positive ion species in a cyclotron, (i) the radius of their circular path inside a dee is directly proportional to their speed, and (ii) the maximum ion energy achievable is directly proportional to the square of the magnetic induction.
