A rectangular loop with an area of 2 m2 is placed perpendicular to a uniform magnetic field of 1 Tesla. The field’s magnitude is increased to 6 Tesla in 4 seconds. The magnitude of the induced emf is equal to:

Induced emf = 0

Explanation:

An emf can be induced due to the change in magnetic field. It can be given by :

As the loop is placed perpendicular to a uniform magnetic field of 1 Tesla. It means that and cos(90) = 0. Hence, the induced emf is equal to 0.

answer: pseudoscience

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg