Share & grow the world's knowledge!
We want to connect the people who have knowledge to the people who need it, to bring together people with different perspectives so they can understand each other better, and to empower everyone to share their knowledge.
When an ideal capacitor is charged by a d.c. battery, no current flows. However, when an a.c. source is used, the current flows continuously. How does one explain this, based on the cancept of displacement current?
When an AC source is connected, the changing electric field in the capacitor creates a varying electric flux between its plates. This variation generates a displacement current, which bridges the gap between the plates, complementing the conduction current in the circuit. Thus, current flows continuRead more
When an AC source is connected, the changing electric field in the capacitor creates a varying electric flux between its plates. This variation generates a displacement current, which bridges the gap between the plates, complementing the conduction current in the circuit. Thus, current flows continuously in an AC circuit, despite the physical gap in the capacitor.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
Professor C.V. Raman surprised his students by suspending freely a tiny light ball in a transparent vaccum chamber by shining a laser beam on it. Which propertyof e.m. waves was he exhibiting? give one more example of this property?
Professor C.V. Raman demonstrated the radiation pressure of electromagnetic waves. Another example of this property is solar sails used in spacecraft, where radiation pressure from sunlight propels the spacecraft without needing conventional fuel. For more visit here: https://www.tiwariacademy.com/nRead more
Professor C.V. Raman demonstrated the radiation pressure of electromagnetic waves. Another example of this property is solar sails used in spacecraft, where radiation pressure from sunlight propels the spacecraft without needing conventional fuel.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
How does microwave oven heats up food item containing water molecules most efficiently?
A microwave oven heats food by emitting microwaves that resonate with water molecules. These microwaves cause the water molecules to vibrate rapidly due to dipole rotation, generating heat through friction. This efficient energy absorption raises the temperature, heating the food evenly and quickly.Read more
A microwave oven heats food by emitting microwaves that resonate with water molecules. These microwaves cause the water molecules to vibrate rapidly due to dipole rotation, generating heat through friction. This efficient energy absorption raises the temperature, heating the food evenly and quickly.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
Which of the following is a defensive skill in Kho-Kho?
Dodging is essential for defenders in Kho-Kho to escape from chasers. It involves deceptive movements such as leaning, quick turns, and sharp footwork. Successful dodging requires anticipation, agility, and quick decision-making, making it a key defensive skill for staying in the game longer and helRead more
Dodging is essential for defenders in Kho-Kho to escape from chasers. It involves deceptive movements such as leaning, quick turns, and sharp footwork. Successful dodging requires anticipation, agility, and quick decision-making, making it a key defensive skill for staying in the game longer and helping the team win.
See lessAnswer: (C) Dodging
What happens when a defender is tagged in Kho-Kho?
In Kho-Kho, a defender must leave the field upon being tagged by a chaser. This reduces the defending team’s numbers, making it easier for chasers to capture remaining players. The game continues until all defenders are tagged or the time limit ends. This system motivates defenders to use every skilRead more
In Kho-Kho, a defender must leave the field upon being tagged by a chaser. This reduces the defending team’s numbers, making it easier for chasers to capture remaining players. The game continues until all defenders are tagged or the time limit ends. This system motivates defenders to use every skill to avoid being tagged.
See lessAnswer: (C) They leave the field