Electricity
Coulomb law F proportional to:
A) q1 q2 / r^2
B) r^2
C) 1/r
D) r
Electric field E is:
A) Force per unit charge
B) Charge per force
C) Potential
D) Current
Electric potential unit:
A) Volt
B) Coulomb
C) Ampere
D) Tesla
Potential difference measured by:
A) Voltmeter
B) Ammeter
C) Galvanometer only
D) Ruler
Current measured by:
A) Ammeter
B) Voltmeter
C) Thermometer
D) Barometer
Ohm law V equals:
A) IR
B) I/R
C) R/I
D) I^2 R only power
Resistance unit:
A) Ohm
B) Volt
C) Ampere
D) Watt
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