A) Ammeters have low resistance and must be connected in parallel. B) Ammeters have high resistance and must be connected in series. C) Voltmeters have high resistance and must be connected in parallel. D) Voltmeters have low resistance and must be connected in series.
A) 167,900 W B) 168 MW C) 3.17 W D) 0.315 W
A) Changing the type of metal from which the wire is made B) Decreasing the temperature of the wire C) Decreasing the cross sectional area of the wire D) Decreasing the length of the wire
A) 1.25V B) 2.5V C) 0.8V D) 8V
A) 9600J B) 345600J C) 5670J D) 580800J
A) Hertz B) Newton C) Volta D) Galvani
A) R/2 B) 4R C) 2R D) R/4
A) I=VR B) R=V/I C) I=V/R D) V=IR
A) MA B) mmA C) Ma D) mA
A) Coulomb B) Joule C) Watt D) kilowatt hour
A) 4.0A B) 4.17A C) 0.25A D) 2.0A
A) 15A B) 100 mA C) 1.0A D) 15 mA
A) it is an electrical conductor B) it has a high resistance C) it has a low melting point D) it has a low resistance
A) clockwise B) up C) anticlockwise D) down
A) 1500 B) 1 500 000 C) 150 000 D) 15 000
A) change electrical energy to mechanical energy B) change mechanical energy to heat energy C) change electrical energy to heat energy D) change mechanical energy to electrical energy
A) change electrical energy to heat energy B) change mechanical energy to electrical energy C) change electrical energy to heat energy D) change mechanical energy to electrical energy
A) 0.06A B) 0.006A C) 6A D) 0.6A
A) Don't know B) True C) False
A) Increases B) decreases C) stays the same D) don't know |