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WorksheetsIB 5.1 Electric Fields
Total questions: 13
Worksheet time: 5mins
What is the definition of electric field strength?
Work done to move a charge from one place to another
Force per unit charge experienced by a small, positive charge
Force between two charges separated by a distance
The amount of charge per unit time
Which experiment proves that charge carriers in metals are electrons?
Benjamin Franklin's kite experiment
Charles Augustin Coulomb's experiment
The Tolman-Stewart Experiment
What is the ϵ0 in this equation?
Electric force constant
Electric permittivity of vacuum
Electric permittivity of medium
What is the electric field strength formula?
r2kQ
r2kQq
rkQq
In this formula, what is symbolized by n and v respectively?
mole number of electrons, drift speed
number of electrons per unit area, volume
number of electrons per unit volume, volume
number of electrons per unit volume, drift speed
In which part of wire drift speed of electrons is less compared to other part?
A
B
What is the definition of electric potential difference?
Electric force per unit charge
Electric charge per unit time
Work done per unit charge
Work done to move a charge 10 C between the two points 200 Joules. What is the potential difference between these two points?
2000
20
10
200
Why do we need eV as a unit in this topic?
To relate it with electricity
To relate the energy with the microscopic world
To relate the voltage with the microscopic world
What does it mean 'charge is quantised' ?
Charge cannot be created or destroyed.
The amount of charge on a body is always the same.
The amount of charge is always integral multiple of a basic unit.
What is the value of 1 eV in terms of Joule?
1.6 x 1019
1.6 x 10-19
8.99 x 109
8.99 x 10-9
What is the direction of the force on -q?
North-east
North-west
South-east
South-west
What happens the electric force between the charges if q1, q2 and r are all doubled?
Doubles
Quadruples
Stays the same
Reduces by half
