Two D.C. shunt generators, each with armature resistance of 0.02 ohm and field resistance of 50 ohm run in parallel and supply a total current of 1000 amperes to the load circuit. If their e.m.fs. are 270 V and 265 V, their bus bar voltage will be
A). 270 V
B). 265 V
C). 265 V
D). 257.4 V
2. The starting torque of a D.C. motor is independent of which of the following?
3. Wien bridge is useful for measuring
4. The effect of sulphation is that the internal resistance
6. Induction heating takes place in which of the following?
7. Current velocity through a copper conductor is
9. Which of the following has highest resistivity?
10. Which of the following does not cause losses in optical fibre cables?