Convert i) 1 microgram into kilogram
ii) 100 decameter into cm

The plum pudding model of the atom state that ?

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?

Explain why electric current cannot exist if a current doesn't have a voltage source.