anybody give me MCQ question question answer of the chapter electricity and circuit class 6
Answers
Question 1.
Cell is a device which
(a) converts chemical energy into electrical energy
(b) electrical energy into light energy
(c) electrical energy into magnetic energy
(d) None of these
Answer: (a) converts chemical energy into electrical energy
Answer: (a) converts chemical energy into electrical energyExplanation:
Answer: (a) converts chemical energy into electrical energyExplanation:In a cell, chemicals are used to produce potential difference.
Question 2.
A bulb has
(a) two terminals and one filament
(b) two terminals and two filaments
(c) multiple terminals and single filament
(d) single terminal and single filament
Answer: (a) two terminals and one filament
Answer: (a) two terminals and one filamentExplanation:
Answer: (a) two terminals and one filamentExplanation:A bulb has a filament which glows and two terminals which are joined to two terminals of the battery.
Question 3.
Filament of a bulb is made up of
(a) aluminium
(b) chromium
(c) platinum
(d) tungsten
Answer: (d) tungsten
Answer: (d) tungstenExplanation:
Answer: (d) tungstenExplanation:Tungsten has high melting point and high resistance.
Question 4.
Bulb glows only in
(a) closed circuit
(b) open circuit
(c) in both circuits
(d) open circuit if bulb is not fused
Answer
AnswerAnswer: (a) closed circuit
AnswerAnswer: (a) closed circuitExplanation:
AnswerAnswer: (a) closed circuitExplanation:Only a closed circuit is a complete circuit.
Question 5.
A battery is
(a) a single cell
(b) a combination of cells in which cells are joined (+) to (-)
(c) a combination of cells in which cells are joined (+) to (+)
(d) None of these
Answer
AnswerAnswer: (b) a combination of cells in which cells are joined (+) to (-)
AnswerAnswer: (b) a combination of cells in which cells are joined (+) to (-)Explanation:
AnswerAnswer: (b) a combination of cells in which cells are joined (+) to (-)Explanation:In a battery two or more cells are combined in such a way that (+) terminal of one cell is joined to (-) terminal of other.
Question 7.
Which is an example of an insulator
(a) bakelite
(b) aluminium
(c) tap water
(d) All of these
Answer
AnswerAnswer: (a) bakelite
AnswerAnswer: (a) bakeliteExplanation:
AnswerAnswer: (a) bakeliteExplanation:Aluminium and tap water are conductors of heat.
Question 8.
An example of a conductor is
(a) tap water
(b) salt solution
(c) metal wire
(d) all of these
Answer: (d) all of these
Answer: (d) all of theseExplanation:
Answer: (d) all of theseExplanation:Tap water, salt solution and metal wire are the examples of conductors.