Current Electricity

Current Electricity
Materials having a resistance that changes with voltage or current are called
ohmic
non-ohmic
batteries
capacitors
Author: rikazzz Comment
Current Electricity
The color of the earth wire is
red or brown
green or yellow
black or blue
white or pink
Author: rikazzz Comment
Current Electricity
Glass, wood, plastic, silk, and fur are examples of
metals
plasma
liquids
insulators
Author: rikazzz Comment
Current Electricity
SI unit for resistance is
farad
ampere
volt
ohm
Author: rikazzz Comment
Current Electricity
The time a current of 30 mA takes to deliver 30 C charge is
0.3 s
0.003 s
0.4 s
0.5 s
Author: rikazzz Comment
Current Electricity
A current of 4 mA is flowing through a wire for 2 minutes, then the charge flowing through the wire will be
220 × 10^-3C
180 × 10^-3C
380 × 10^-3C
480 × 10^-3C
Author: rikazzz Comment
Current Electricity
Voltage can be fatal of
10 V
20 V
15 V
50 V
Author: rikazzz Comment
Current Electricity
The electric power enters our house through
ground wire
neutral wire
live wire
all of above
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Current Electricity
An electric instrument which measures larger current and always connected in series in a circuit is termed as
Vernier calipers
galvanometer
ammeter
voltmeter
Author: rikazzz Comment
Current Electricity
An ideal voltmeter should have
low resistance
high resistance
zero resistance
minimal resistance
Author: rikazzz Comment

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