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⁞ Electrical and Electronics Engineering

Engineering ➤ Electrical and Electronics Engineering ➤ Voltage-Current-And-Resistance
Question 1
Q1.  The unit of electrical charge is the
 

Answer :  coulomb


Coulomb is the SI unit of electric charge, equal to the quantity of electricity conveyed in one second by a current of one ampere.
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Question 2
Q2.  A thermistor is a type of
 

Answer :  resistor


Thermistor is an electrical resistor whose resistance is greatly reduced by heating, used for measurement and control. A thermistor is a type of resistor whose resistance is dependent on temperature, more so than in standard resistors.
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Question 3
Q3.  A material that does not allow current under normal conditions is a(n)
 

Answer :  insulator


A material or an object that does not easily allow heat, electricity, light, or sound to pass through it. Air, cloth and rubber are good electrical insulators; feathers and wool make good thermal insulators.
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Question 4
Q4.  A multimeter measures
 

Answer :  current, voltage and resistance


A multimeter or a multitester, also known as a VOM (Volt-Ohm-Milliammeter), is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter can measure voltage, current, and resistance.
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Question 5
Q5.  A wiper is the sliding contact in a
 

Answer :  potentiometer


A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. If only two terminals are used, one end and the wiper, it acts as a variable resistor or rheostat.
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