Class X Physics QUESTION BANK(Magnetic Effects of Current)

One mark Questions: 1. How can you show that the magnetic field produced by a given electric current in the wire decreases as the distance from the wire decreases? 2. What is the advantage of the third wire of earth connection in domestic appliances? 3. What constitutes the field of a magnet? 4. What is…… Continue reading Class X Physics QUESTION BANK(Magnetic Effects of Current)

Class X Physics QUESTION BANK(Magnetic Effects of Current)

One mark Questions: 1. How can you show that the magnetic field produced by a given electric current in the wire decreases as the distance from the wire decreases? 2. What is the advantage of the third wire of earth connection in domestic appliances? 3. What constitutes the field of a magnet? 4. What is…… Continue reading Class X Physics QUESTION BANK(Magnetic Effects of Current)

Why the current through a conducting wire and a resistor are the same though the resistor has a greater resistance?

When a resistor is connected to a source using conducting wires, both are in series. The current through the wire as well as the resistor is determined by the total resistance of the circuit according to the relation V = IR Similarly, when a current is passed through a heating element, the connecting wires are…… Continue reading Why the current through a conducting wire and a resistor are the same though the resistor has a greater resistance?