Class 10 Science 1 Chapter 4 Effects of Electric Current Solutions
Study the heating and magnetic effects of electric current through Maharashtra Board textbook solutions. Learn to solve numerical questions, explain diagrams and revise the chapter with the mind map on the last page of the PDF.
What Will You Learn in This Chapter?
Electric current has several useful effects. It can produce heat in an electrical appliance and create a magnetic field around a wire or coil. By understanding these effects, students can explain electric motors, electromagnetic induction and generators.
Heating Effect
Study electrical energy, power, resistance and the heat produced when current flows through a conductor.
Magnetic Effect
Learn about magnetic fields around current-carrying wires and solenoids.
Motors and Generators
Compare how electric motors use current to produce motion and generators use motion to produce current.
Topics Covered in the Chapter 4 Solutions
Heating Effect of Electric Current
Understand why a conductor becomes hot when current passes through it. Apply the relationships between current, resistance, power, time and electrical energy in numerical questions.
Electrical Power and Consumption
Calculate the energy used by household appliances and express consumption in kilowatt-hours. Learn how appliance power and time of use affect the electricity bill.
Magnetic Field Around a Conductor
Identify the shape and direction of magnetic field lines around a straight current-carrying wire. Study the field produced by a coil and a solenoid.
Electric Motor
Follow the parts and working of an electric motor. Explain how a current-carrying coil experiences a force in a magnetic field and how the arrangement keeps the coil rotating.
Electromagnetic Induction
Learn how a changing magnetic field can induce a current. Use Fleming’s right-hand rule to identify the direction of the induced current when appropriate.
AC and DC Generators
Compare alternating and direct current and explain how generators convert mechanical energy into electrical energy. Practise identifying and labelling the main parts in diagrams.
Important Relationships
For an electricity-cost problem, convert power into kilowatts and time into hours before calculating units consumed. In diagram questions, label each component and explain its role.
How to Use These Textbook Solutions
- Attempt the textbook exercise question before reading its solution.
- For numericals, list the given values and convert their units.
- Write the formula, substitute values and show each calculation clearly.
- For motors and generators, study the labelled diagram alongside the explanation.
- Use the mind map on the final PDF page for quick chapter revision.
Mind Map on the Last Page
The final page of the Chapter 4 solutions PDF contains a mind map. Use it to revise the heating and magnetic effects, electrical power, motors, induction and generators together.
Frequently Asked Questions
What are the main effects of electric current in this chapter?
What does an electric motor do?
What does an electric generator do?
What is electromagnetic induction?
What is the difference between AC and DC?
Where is the Chapter 4 mind map?
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