What is the full form of LED?
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Low Energy Device
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Light Energy Display
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Long Emission Diode
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Light Emitting Diode
What does a resistor do in a circuit?
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Reduces current flow
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Amplifies current
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Converts AC to DC
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Stores energy
Which component stores electrical energy in an electric field?
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Transistor
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Resistor
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Capacitor
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Diode
What component is commonly used to amplify signals?
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Diodes
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Transformer
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Transistor
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Resistor
Which part of a mobile phone is responsible for processing?
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Antenna
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Battery
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Processor
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Speaker
Which one is used to permanently store data?
Which part of a smartphone detects screen touch?
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Antenna
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Battery
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Touch sensor
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Microprocessor
What unit is used to measure battery capacity?
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Watt
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Ampere
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Volt
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milliampere-hour (mAh)
Which device converts AC to DC?
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Transformer
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Rectifier
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Resistor
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Inverter
Which device is used to measure temperature electronically?
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Galvanometer
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Multimeter
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Photodiode
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Thermocouple