Question

Ohn's law states that the current through a conductor between two point is directly proportional to the voltage across the two points Introducing the constant of proportionality, the resistance, one arrives at the usual mathematical equation that describes this relationship. Voltage and resistance of the circuit

are 20 V and 60 ohm.

(1) Name the device used to measure current in the given circuit diagram

(a) Voltmeter

(b) Ammeter

(c) Resistor (d) None of the above

(2)Name the device used to measure voltage in the given circuit diagram, (a) Watt-meter (b) Voltmeter (c) Ammeter (c) All of the above

(3) Calculate the current in the circuit (a) 0,33 A (b) 0.35 A (b) 0.45 A (d) 0.55 A

(4)What will be the current in the circuit if 40 V battery is connected with 20 V (a) 1 A (b) 2 A (e) 3 A (d) None of the above

(5) What will be the new resistance when 60 ohm resistance is connected in parallel

c30 ohm (a) 40 ohm (b) 20 ohm (c) 40ohm (d) 60 ohm

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Answer 1

Answer:

1) b) Ammeter

2)b) voltmeter