Veto q&a 7 Month22 (1)

Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q & A
36
@scientech
Gifted Child
Electricity is the flow of
A. Electrons
Electric charge was first observed in a substance
called
A. Amber
Unit of electric charge
A. Coulomb
1 Coulomb = 6.24x10 18 electrons
Charge of an electron
A. 1.6x10 -19 C
The rate of flow of charge through a conductor per
second is called
I = Current
A. Current
Q= Quantity
t = charge flowing in second
SI Unit of Current
A. Ampere (A)
The region which surrounds the electrically charged
particles are called
A. electric Field
The term ‘electricity’ was coined by
A. Gilbert
The process of splitting up of a chemical substance
when an electric current flows through it is called
A. Electrolysis
Substance used for electrolysis are called
A. Electrolyte
Ι= Q t
eg:- sodium chloride, Potassium chloride
The capacity of an electric field to do work on an
electric charge
A. electric Potential
Electro Magnetism was discovered by
A. Hans Christian Oersted in 1820
Electricity is divided into two
Q&AUbdn current affairs & gk
Q
Q
Q
Q
Q
Q
Q
Q
kAS
TipTop
Jayesh P.J., Dhanya.B.L
A. Static electricity
Dynamic electricity
The rate of production of electrical energy per unit
of time
A. electric Power
The negative electrode in a dry cell is
A. Cathode
Eg:- Zinc
The positive electrode in a dry cell is
A. Anode
Eg:- Carbon rod
The study of nature, control and application of
electrons
A. Electronics
The simplest form of vacuum tube
A. Diode (discovered by J.A. Fleming)
Vacuum tubes work on the Principle of
A. Thermionic Emission
Q & A Energy Zone
Transformation of Energy
• Electric Fan - Electrical to Mechanical
• Electric Bulb - Electrical to Light
• Electric Bell - Electrical to Sound
• Electric Cell - Solar to Electrical
• Battery - Chemical to Electrical
• Electric Oven - Electrical to Heat
• Dynamo - Mechanical to Electrical
• Motor - Electrical to Mechanical
Gifted child of electronics
A. Transistor
The electrical resistance of a substance is Zero, the
substance is called
A. Super Conductor
February 2018