MEDIUM
10th CBSE
IMPORTANT
Earn 100

A 5 V battery is connected to two 20 Ω resistors which are joined together in series.
(a) Draw a circuit diagram to represent this. Add an arrow to indicate the direction of conventional current flow in the circuit.
(b) What is the effective resistance of the two resistors?
(c) Calculate the current that flows from the battery.
(d) What is the potential difference across each resistor?

Important Questions on Electricity

MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Short Answer Type Questions>Q 30
The figure given below shows an electric circuit in which current flows from a 6 V battery through two resistors.
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(a) Are the resistors connected in series with each other or in parallel?
(b) For each resistor, state the p.d. across it.
(c) The current flowing from the battery is shared between the two resistors. Which resistor will have a bigger share of the current?
(d) Calculate the effective resistance of the two resistors.
(e) Calculate the current that flows from the battery.
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Short Answer Type Questions>Q 31
A 4 Ω coil and a 2 Ω coil are connected in parallel. What is their combined resistance? If the total current of 3 A passes through the coils. What current passes through the 2 Ω coil?
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Long Answer Type Questions>Q 32
With the help of a circuit diagram, deduce the equivalent resistance of two resistances connected in series.
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Long Answer Type Questions>Q 32

Two resistances are connected in series as shown in the diagram:

 

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(i) What is the current through the 5 ohm resistance?
(ii) What is the current through R?
(iii) What is the value of R?
(iv) What is the value of V?

MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Long Answer Type Questions>Q 33
With the help of a diagram, derive the formula for the resultant resistance of three resistors connected in series.
HARD
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Long Answer Type Questions>Q 33
For the circuit shown in the diagram given below:
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Calculate:
(i) the value of current through each resistor.
(ii) the total current in the circuit.
(iii) the total effective resistance of the circuit.
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Long Answer Type Questions>Q 34
With the help of a circuit diagram, obtain the relation for the equivalent resistance of two resistances connected in parallel.
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Long Answer Type Questions>Q 34
In the circuit diagram shown below, find:
(i) Total resistance.
(ii) Current shown by the ammeter A
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