Electricity Flashcards
A1 mocks
1
Q
What is an ‘ideal’ voltmeter and ammeter?
A
Voltmeter with infinite resistance
Ammeter with zero resistance
2
Q
When is a material a superconductor?
A
When it has zero resistivity and is below the critical temperature
3
Q
How do you keep the temperature of a wore constant?
A
Only use a small current and turn off between readings
