A. current through supply line flows at slower speed
B. supply wiring is covered with insulation layer
C. resistance of heater coil is more than the supply wires
D. supply wires are made of superior material
A. ohms/°C
B. mhos/ohm°C
C. ohms/ohm°C
D. mhos/°C
A. Lorentz method
B. Releigh method
C. Ohm’s law method
D. Wheatstone bridge method
A. a column of mercury
B. a cube of carbon
C. a cube of copper
D. the unit length of wire
A. 3/2 Q
B. 6 Q
C. 4 Q
D. 8/3 Q
A. 9 times
B. 1/9 times
C. 1/3 times
D. 3 times
A. decrease
B. increase
C. remain constant
D. none of the above
A. semi-conductor
B. super-conductor
C. compound
D. insulator
A. 1/9 times
B. 3 times
C. 9 times
D. unchanged
