Physics Worksheet Grade 12 - 2016 E.C.

A cube of length 2.5cm is placed in uniform magnetic field of (5i + 4j +6k)T. What is the flux through the x-axis?

A circular loop with a radius of 20cm is positioned perpendicular to a uniform magnetic field, the magnetic flux that passes through the loop is 1.9 x10-2 Wb. What is the magnetic flux density?

Silicon and germanium are an example of :

What is types of extrinsic semiconductor, the number of electrons on the outer most shell of group V elements?

(a)   is a two terminal electronic component that only conducts currents in one direction and block current in the reverse direction.

The combination of electrons and holes near the junction creates a narrow region is called,

A full wave rectifier allows both cycle of an AC voltage to pass.

A half wave rectifier allows one-half cycle of an AC voltage wave form to pass by blocking other half cycle.

In transistor, if the current gain is 100 and the collector current is 10mA, what is the emitter current?

Which junction in the transistor is forward biased? Which junction reverse biased? (hint: types of bipolar)