If 1 A current flows in a circuit, the number of electrons flowing through this circuit is

Current

• A flow of electrons in any conductor is called current.
• It is represented by I and its unit is Ampere.
• An ammeter is used to measure the current by connecting in series with the circuit.

Ampere

• When 6.24 × 10¹⁸ electrons flow in one second across any cross-section of any conductor, the current in it is one ampere.
• (Or) If the potential difference across the two ends of a conductor is 1 volt and the resistance of the conductor is 1 ohm then the current through is 1 ampere.

• In a hotel, the rooms are numbered from 101 to 130 on the first floor, 221 to 260 on the second floor and 306 to 345 on the third floor. In the month of June this year, the room occupancy was 60% on the first floor, 40% on the second floor and 75% on the
• The total number of students in a school was 660. The ratio between boys and girls was 13:9. After some days, 30 girls joined the school and some boys left the school and new ratio between boys and girls became 6: 5. The number of boys who left the school
• Rs.180 are to be divided among 66 persons ( men and women). The ratio of the total amount of money received by men and women is 5 : 4. But the ratio of the money received by each man and woman is 3: 2. The number of man is
• The average of 8 numbers is 19. The average of first and sixth numbers is 17 and that of the third, fifth and seventh numbers is \(24\frac{1}{3}\). If the second number is less than the fourth number by 8, and greater than the eighth number by 2, then the
• Three measuring rods are of length 120 cm, 100 cm and 150 cm. Find the least length of the fence that can be measure an exact number of times, using any of the rods. How many times each rod will be used to measure the length of the fence?