The unit of spring constant is:
Nm2
Nm-1
100x103 A= :
10-3 A
10-2 A
10 A
10-1A
Why household appliances should be connected in parallel with the voltage source:
To increase the resistance of the circuit
To decrease the resistance of the circuit
To provide each appliance the same voltage as the power source
To provide each appliance the same current as the power source
Nichrome wire is an alloy of:
Lead and zinc
Silver and copper
Nickel and chromium
Iron and copper
