Question 1:
What is meant by electromotive force, e.m.f.?
Answer:
The electromotive force, e.m.f. is the energy transferred or work done by a source of electrical energy to move one coulomb of charge in a complete circuit.
What is meant by electromotive force, e.m.f.?
Answer:
The electromotive force, e.m.f. is the energy transferred or work done by a source of electrical energy to move one coulomb of charge in a complete circuit.
Question 2:
State the difference between e.m.f. and potential difference.
Answer:
The electromotive force, e.m.f. is the work done by a source of electrical energy to move one coulomb of charge in a complete circuit and its value is measured when the switch is open (open circuit) while potential difference is the work done to move one coulomb of charge between two points in the external circuit and its value is measured when the switch is closed (closed circuit).
State the difference between e.m.f. and potential difference.
Answer:
The electromotive force, e.m.f. is the work done by a source of electrical energy to move one coulomb of charge in a complete circuit and its value is measured when the switch is open (open circuit) while potential difference is the work done to move one coulomb of charge between two points in the external circuit and its value is measured when the switch is closed (closed circuit).
Question 3:
What is the effect of internal resistance on current in a complete circuit?
Answer:
The magnitude of the current is smaller.
What is the effect of internal resistance on current in a complete circuit?
Answer:
The magnitude of the current is smaller.
Question 4:
If you are supplied with two dry cells, what type of arrangement can reduce the effective internal resistance of the dry cells?
Answer:
The dry cells are connected in parallel.
If you are supplied with two dry cells, what type of arrangement can reduce the effective internal resistance of the dry cells?
Answer:
The dry cells are connected in parallel.