Electricity - Assignment Sheet
Very Short Q & A (1 marks each)
Q1: Define resistivity of material.
Q2: What is the power of torch bulb rated at 2.5V and 500mA?
Q3: Why series arrangement not used for connecting domestic electrical appliances in a circuit?
Q4: Which has higher resistance – a 50W bulb or a 2.5W bulb and how many times?
Q5: What is the direction of flow of conventional current?
Q6: Calculate the amount of charge flowing in a wire if it draws a current of 2A in 10 minutes
Q7: What happens to resistance of a conductor if area of cross-section is doubled?
Q8: Which device helps to maintain a potential difference across a conductor?
Q9: Find the number of electron in 1C of charge.
Q10: Name the physical quantity whose unit is V/A.
Q11: Name the device that helps to maintain a potential a potential difference across a conductor.