17. D.C Circuits Flashcards
1
Q
What is the resistance of an ideal ammeter?
A
zero
2
Q
what is the resistance of an ideal voltmeter?
A
ideal voltmeter would have infinite resistance.
3
Q
How does the temperature affect the resistance of a thermistor?
A
the resistance of the thermistor decreases as temperature increases.
4
Q
How does the light intensity affect the resistance of a LDR?
A
the resistance of the LDR decreases as the light intensity increases.
5
Q
What is Kirchhoff’s current law?
A
the algebraic sum of currents entering a junction must be equal to the algebraic sum of currents leaving a junction.
