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1. If there is a current of 10 amperes in a circuit for 10 minutes, what quantity of electric charge flows in through the circuit? 2. How much current must there be in a circuit if 100 coulombs flow past a point in the circuit in 4 seconds? 3. How much time is required for 10 coulombs of charge to flow past a point if the rate of flow (current ...
A current of 1.5 A flows through a lightbulb for 10 minutes. (a) How much charge flowed through the lightbulb? (b) How many charges flowed through the lightbulb?
7 Ιουλ 2018 · The spark lasts for 75ms and 0.0017C of charge passes. (i) State the equation linking charge, current and time. (1) (ii) Calculate the average current in the spark. Give the unit. (3) current = ..... unit ..... (c) Metal appliances, such as the lift button, are earthed for safety.
Charge = current x time . Questions . 1. Define “charge” and give its unit and symbol 2. Define “current” and give its unit and symbol 3. What equation relates current and charge? 4. If charges move more quickly, what happens to the amount of current? 5. The total amount of charge in a circuit remains constant. Explain why. 6.
Worksheet - Coulomb’s Law 1. A negative charge of - 2.0 C and a positive charge of 3.0 C are separated by 80 m. What is the force between the two charges? 2. A negative charge of - 0.0005 C exerts an attractive force of 9.0 N on a second charge that is 10 m away. What is the magnitude of the second charge? 3.
Q1 Write down the SI units for electric charge, current, potential, energy and power. Q2 2.00 ×10 16 electrons pass through a point in a circuit in 0.25 s. Calculate the electric current through the point. Q3 Calculate the potential energy of an electron at a point where the electric potential is 6.0 volts.
1 CLASS – 12 WORKSHEET- ELECTRIC CHARGE AND FIELD A. ELECTRIC CHARGE (1 Mark Questions) 1. If a body contains n 1 electrons and n 2 protons then what is the total charge on the body? Sol + qQ = q 1 2 +.... + q n. (Additive property of charge) Q = (n 2 – n 1)e 2. What is the total positive or negative charge present in 1 molecule of water ...
