Class 10 Science|physics Important Questions for Electricity
Given below are the Class 10 Science Important Questions for electricity
a) Concepts questions
b) Calculation problems
c) Multiple choice questions
d) Long answer questions
e) Fill in the blanks
Short Answer Based questions
What is relation between KWH and Joule?
The Flow of electron constitutes the electric current in the wire. True or false?
A voltmeter has high resistance and it is connected in parallel True of false?
What is resistance of the conductor?
What is the SI unit of resistivity?
What are the applications of chemical effect of current?
What is same across the parallel combination of resistors Voltage or current?
i. Heater A has higher resistance
ii.
Heater A
$E= P \times t =150 \times 1 = .15 KWH$
Heater B
$E= P \times t =100 \times 1 = .10 KWH$
So heater A will be costly
Fill in the blanks
The positively charged electrode in an electrolytic cell is called ________.
The positively electrode in an electrochemical cell is known as ___________.
The potential difference between the ends of the wire of resistance 1 ohm is doubled, the electric power across the wire will ______ by _____.
The commercial unit of electric power is _________.
Mercury becomes super conductor when temperature is dropped to _______.
During the electrolysis of a salt solution,the electricity is carried by _______ and________.
Fill in the blank Solution
1)Anode
2) Cathode
3) Increase , four times
4)Kilowatt-hour
5) -269 0C
6) Positively charged cations, negatively charged anions
Crossword Puzzle
Across
3. This law states that current is directly proportional to voltage applied
4. This is a process for depositing a thin layer of desired metal over another metal
5. Instrument used to measure current
6. This alloy is used for making heating elements of electrical appliances
Down
1. Substance having infinite resistance
2. Instrument used to measure Voltage
7. This is the unit of charge
