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Choose the correct option.
1. The magnitude of a current flowing through a device depends
(a) only on the voltage across it
(b) only on its resistance
(c) on its resistance and the voltage across it (d) none of these
2. Nichrome is used for making
(a) the filaments of bulbs
(b) fuse wires
(c) heater elements
(d) coils for electromagnets
3. To make a battery of 9 volts, how many 1.5-V cells are needed?
(a) 6
(b) 5
(c) 4
(d) 3
Answers
Answered by
1
Answer:A, both voltage and resistance
B,heater elements
C,6
Explanation:
A, Because voltage and resistance maintains the flow of current
B, Because it heats up quickly into a high temperature
C, because 1.5v × 6 = 9v
Explanation: mark me as brainlist
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