The charge of an electron is
(a) -3.2 × 10-19C
(b) -1.6 × 10-19C
(c) 6 × 10-19 C
(d) 3.2 × 10-19 C
WBBSE
Class X
Physical Science
Current Electricity
01 Mark
2022
(b) -1.6 × 10⁻¹⁹ C
Explanation: The charge of an electron is negative and its magnitude is 1.6 × 10⁻¹⁹ coulombs.
Related Questions
More WBBSE Easy level questions
1/12
Q.
Match the Right column with the Left column
A.
2.11.1 Acetic acid → (b) Weak electrolyte 2.11.2 Glass → (a) non-conductor...
Q.
‘Kilowatt-hour’ is the unit of which physical quantity?
A.
'Kilowatt-hour' is the unit of energy.
Q.
What is the unit of electrical conductance?
A.
The unit of electrical conductance is the Siemens (S). OR Fuse wire...
Q.
What is the SI unit of electric charge?
A.
The SI unit of electric charge is the coulomb (C).
Q.
If the resistance (R) of the conductor and time of flow of current in the...
A.
(c) H ∝ I² Explanation: According to Joule's law of heating, the...
Q.
If two conductor wires of resistances 6 ohms and 4 ohms are connected in parallel...
A.
For parallel Combination: = + or, = + or, = or, Req...
Q.
State Ohm’s law. If a potential difference of 10 V is applied between the two...
A.
Ohm's Law states that the current (I) flowing through a conductor is...
Q.
Which energy is transformed to which energy in an electric motor? Why in domestic circuits,...
A.
In an electric motor, electrical energy is transformed into mechanical energy. Domestic...
Q.
Give the definition of electromotive force of an electric cell in open circuit.
A.
The electromotive force (emf) of an electric cell in an open circuit...
Q.
By which rule is the direction of rotation of Barlow’s wheel determined?
A.
The direction of rotation of Barlow's wheel is determined by Fleming's Left-Hand...
Q.
What would be the equivalent resistance of a circuit containing resistances of 6 Ω and...
A.
First, calculate the equivalent resistance of the two resistors in parallel (6...
Q.
What is DC?
A.
DC (Direct Current) is a type of electric current that flows in...