Question
A conducting loop is placed in a uniform magnetic field with its plane perpendicular to the field. An emf is induced in the loop if:

Answer

  1. It is rotated about a diameter.
  2. It is deformed.
​​​​​​​Explanation:
þ An emf is induced in the loop is it is rotated about a diameter
þ An emf is induced in the loop if it is deformed.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Domain formation is the necessary feature of:
The power loss is less in transmission lines, when:
The correct curve representing the variation of capacitive reactance $Xc$​ with frequency $f$ is.
Which of the following is wrong for interference fringes?
Four charges are kept at the corner points of a square. The net force on a charge kept at the center of the square is _________?
There is an air filled 1 pF parallel plate capacitor. When the plate separation is doubled and the space is filled with wax, the capacitance increases to 2pF. The dielectric constant of wax is (a) 2(b) 4(c) 6       (d) 8
       
The energy of an $X-$ray photon of wavelength $1.65 A \text { is }\left(h=6.6 \times 10^{-34} J-\sec, 1 eV=1.6 \times 10^{-19} J\right)$
An ac generator consists of a coil of 200 turns, 100cm in diameter. If the coil rotates at 500 rpm in a magnetic field of 0.25T, then the maximum induced emf.
A bullet of mass 2 gm is having a charge of 2μC. Through what potential difference must it be accelerated, starting from rest, to acquire a speed of 10 m/s(a) 5 kV(b) 50 kV(c) 5 V(d) 50 V
       
12 cells each having same emf are connected in series with some cells wrongly connected. The arrangement is connected in series with an ammeter and two cells which are in series. Current is 3 A when cells and battery aid each other and is 2 A when cells and battery oppose each other. The number of cells wrongly connected is(a) 4 (b) 1(c) 3  (d) 2