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ANSWERS TO QUESTIONS Q1. THROUGH Q29.

A1. Self-excited.
A2. Phosphor bronze ribbons.
A3. The pointer arrangement and the light and mirror arrangement.
A4. Coil balance.
A5. Hairspring.
A6. Hairspring.
A7. Makes it possible to have a more linear scale than if the poles were flat.
A8. Shunt.
A9. Zero-temperature coefficient.
A10. Midscale.
A11. In series.
A12. Negative, positive.
A13. False.
A14. Meter-loading.
A15. A multimeter (high resistance) is placed in series with the coil of the meter.
A16. The current required for full-scale deflection, and the range of the voltage to be measured.
A17. In parallel.
A18. High.
A19. Ohms per volt.
A20. Megohmmeter (megger).
A21. 1. A source of dc potential.
     2. One or more resistors (one of which is variable).
A22. Zero.
A23. 1/10.
A24. Shunts leakage current, which prevents false readings.
A25. 500.
A26. Friction clutches.
A27. Fixed coils.
A28. Size of spiral conducting.
A29. The electrodynamometer-type meter can be used to measure both ac and dc currents.