_______ is a hard solder.
A). Tin-lead
B). Tin-silver-lead
C). Copper-zinc
D). None of the above
1. In the cables, sheaths are used to
3. Which of the following features is not associated with Nichols chart?
4. In the transformer following winding has got more cross-sectional area
6. In the case of PMMC rectifier type instruments, the deflecting torque is proportional to
7. Which of the following motors is used in tape-recorders ?
8. The purpose of RC or transformer coupling is to ___________