JEE Main 27 June 2022 Shift 2 Solved Paper

A metallic rod of length 20‌cm is placed in North-South direction and is moved at a constant speed of 20m∕s towards East. The horizontal component of the Earth's magnetic field at that place is 4×10−3T and the angle of dip is 45∘. The emf induced in the rod is ______mV