Two materials having temperature coefficients of 0.004 and 0.0004 respectively are joined in series. The overall temperature coefficient is likely to be
Options
A. 0.08
B. 0.04
C. 0.001
D. 0.0001
Correct Answer
0.001
Explanation
The overall temperature coefficient will be less than 0.004 and more than 0.0004.
More questions
1. As compared to dimensions of most feeds, the skin depth at microwave frequencies is
Correct Answer: phasor sum of fields produced by individual antennas of the array
Explanation:
Since field is a phasor quantity we have to take phasor sum.
7. A standard cell of 1.0185 V is used with a slide wire potentiometer. The balance was obtained at 60 cm. When an unknown emf was connected, the balance was obtained at 82 cm. The magnitude of unknown emf is