Question

1.A positively charged particle projected towards east is deflected towards north
by a magnetic field. The direction of the field is :
a. towards south
b. towards east
c. downward
d. upward

Answer 1

answer:- (D) upward direction

Explanation:

according to the Question the positively charged particles are moving towards West indicating the direction of current is towards West, as the deflection is towards North we can interpret that the Force is Towards North.Using Flemings Left-hand thumb rule we adjust our forefinger, center finger and thumb of our left-hand indicating the direction of Magnetic Field, Current and Force/Motion Respectively

Hence the direction of Magnetic Field is (d)Upward