Test 2: A.C. Generator, Transformer, Electron Beam

Question 1

In an A.C generator, slip rings are used to:

• Areverse current direction periodically
• Bconvert A.C to D.C
• Cprevent induced current
• Dmaintain continuous electrical contact with the rotating coil

Question 2

An A.C generator converts:

• Aelectrical energy into mechanical energy
• Bmechanical energy into electrical energy
• Cheat into light
• Dchemical energy into electrical energy

Question 3

The most basic A.C generator includes a rectangular coil placed between the poles of a:

• Abattery
• Bpermanent magnet
• Ctransformer
• Dresistor

Question 4

In an A.C generator the parts that remain fixed and maintain contact with the slip rings are the:

• Acarbon brushes
• Barmature
• Cpoles of the magnet
• Dgalvanometers

Question 5

The faster the coil of an A.C generator rotates, the:

• Asmaller the induced voltage
• Blarger the induced voltage
• Clower the frequency
• Dless the flux is cut