1 mark Questions
Complete the below with the similar
functionality.
a) Washing machine : Mechanical effect
Safety fuse : Heating effect
b) Resistance is halved : Electric current is doubled
Current in the circuit doubles : Heat generated becomes four times
Fridge: Mechanical effect
d) Power = Work / Time
Amperage = Wattage / Voltage
e) Effective resistance decreases: Parallel connection
Effective resistance Increases : Series connection
f) Hydrogen: Blue
Chlorine: Green
g) Same
voltage for all appliances: Parallel connection
Same current is passed through all appliances : Series connection
h) The part from which light comes out of the bulb : Diffuser cup
Metal plate that fixes the heat sink to the holder : LED chip board
i) Electric stove : Heating effect
Electric Bulb: Lighting effect
j) Tungsten - Filament lamp
Nichrome : Electric iron
k) Heating coil: Nichrome
Filament : Tungsten
l) Low melting point : Fuse wire
High melting point : Heating coil
m) I2Rt: H
l2R = P
Identify the Odd one. Justify your answer
a) Tungsten filament, Heating coil, Fuse wire.
Fuse wire. It has a relatively low melting point. Tungsten filament and heating coil have high melting points.
b) Electric heater, Induction cooker, safety fuse, Discharge lamp.
Discharge lamp - Light energy is created from electrical energy. Others convert electrical energy into heat energy.
c) Inert gas, Tungston, Glass bulb, Nichrome.
Nichrome - Others are the parts of filament lamp.
d) Soldering iron, multimeter, Diffuser cup, Tester.
Diffuser cup. This belongs to the LED light bulb. The
other items are repair equipment for LED bulbs.
e) Fluorescent substance, mercury, ultraviolet rays, nitrogen.
Nitrogen - Nitrogen is filled in discharge lamps. Others are the components of fluorescent lamp.
f) Base unit, LED chip board, Heat sink compound, Diffuser cup.
Heat sink compound : One of the supplementary tools to construct an LED bulb. Others are parts of LED bulb
g) Fluorescent lamp, LED lamp, CFL lamp.
LED lamp. Since there is no mercury in it, it is not harmful to environment. Others have mercury in them.
Other important links
Class10-Physics-Ch1-Effects
of Electric current - Main reference
Class10-Physics-Ch1-Effects
of Electric current - 1 mark expected question - page-1
Class10-Physics-Ch1-Effects
of Electric current - 1 mark expected question - page-2
Class10-Physics-Ch1-Effects
of Electric current - 2 mark expected questions
Class10-Physics-Ch1-Effects
of Electric current - 3 mark expected questions