A. 400 Q
B. 600 Q
C. 800 Q
D. 1000 Q
A. 6.4 A, 6.9 A
B. 6.4 A, 9.6 A
C. 4.6 A, 6.9 A
D. 4.6 A, 9.6 A
A. the same as propagation velocity of electric energy
B. independent of current strength
C. of the order of a few ^.s/m
D. nearly 3 x 108 m/s
A. Manganin
B. Porcelain
C. Carbon
D. Copper
A. two in parallel
B. two in parallel and one in series
C. three in parallel
D. three in series
A. same current passes in turn through both
B. both carry the same value of current
C. total current equals the sum of branch currents
D. sum of IR drops equals the applied e.m.f.
A. Elements have individual currents
B. Currents are additive
C. Voltages are additive
D. Power are additive
A. Copper
B. Aluminum
C. Carbon
D. Brass
A. vacuum tubes
B. carbon resistors
C. high voltage circuits
D. circuits with low current densities