The current carrying wire produces magnetic field around it. When a compass is kept nearby this wire, the two magnetic field (magnetic field due to wire and magnetic field due to compass) interact each other causing deflection in magnetic needle. When the current is switched off, there is no magnetiRead more
The current carrying wire produces magnetic field around it. When a compass is kept nearby this wire, the two magnetic field (magnetic field due to wire and magnetic field due to compass) interact each other causing deflection in magnetic needle. When the current is switched off, there is no magnetic field produced by the wire, magnetic needle does not deflect from its north-south position.
Heating Effect of current: When an electric current passes through a wire, the wire gets heated. This is known as the heating effect of current. Which is used in many heating applications like electric heater, electric ion, light bulb etc. Magnetic Effect of current: When an electric current flows tRead more
Heating Effect of current: When an electric current passes through a wire, the wire gets heated. This is known as the heating effect of current. Which is used in many heating applications like electric heater, electric ion, light bulb etc.
Magnetic Effect of current: When an electric current flows through a wire, it generates magnetic field around it. This effect is called magnetic effect of current. Magnetic Effect of electric current has many applications like power lift, electric bell, electric fan etc.
Fill in the blanks: The combination of two or more cells is called a ____________.
The combination of two or more cells is called a battery. https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-14/
The combination of two or more cells is called a battery.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-14/
See lessFill in the blanks: Longer line in the symbol for a cell represents its ____________ terminal.
Longer line in the symbol for a cell represents its positive terminal. https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-14/
Longer line in the symbol for a cell represents its positive terminal.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-14/
See lessWhen the current is switched on through a wire, a compass needle kept nearby gets deflected from its north-south position. Explain.
The current carrying wire produces magnetic field around it. When a compass is kept nearby this wire, the two magnetic field (magnetic field due to wire and magnetic field due to compass) interact each other causing deflection in magnetic needle. When the current is switched off, there is no magnetiRead more
The current carrying wire produces magnetic field around it. When a compass is kept nearby this wire, the two magnetic field (magnetic field due to wire and magnetic field due to compass) interact each other causing deflection in magnetic needle. When the current is switched off, there is no magnetic field produced by the wire, magnetic needle does not deflect from its north-south position.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-14/
See lessName any two effects of electric current.
Heating Effect of current: When an electric current passes through a wire, the wire gets heated. This is known as the heating effect of current. Which is used in many heating applications like electric heater, electric ion, light bulb etc. Magnetic Effect of current: When an electric current flows tRead more
Heating Effect of current: When an electric current passes through a wire, the wire gets heated. This is known as the heating effect of current. Which is used in many heating applications like electric heater, electric ion, light bulb etc.
Magnetic Effect of current: When an electric current flows through a wire, it generates magnetic field around it. This effect is called magnetic effect of current. Magnetic Effect of electric current has many applications like power lift, electric bell, electric fan etc.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-14/
See lessWhat would be the CBSE Exam 2022-2023 Date Sheet for Class 10 and 12?
May 2021
May 2021
See less