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Current electricity questions

Current electricity questions | form three Physics

Find Current electricity examination questions, form three Physics in acaproso.com

# Question
1

Fuse wires are labeled 3A, 5A, 10A, 12A, 18A and 20A. Select the best fuse for a 240V; 2.856kW electric kettle.


Short answers
2

Describe with the aid of circuit diagram, how would you determine the resistance of a conductor using the ammeter-voltmeter method.


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3

In the circuit below, all resistors have equal resistance R. What is the effective resistance between P and Q?

Electronics physics form four

A 2R
B 2R
C 32R
D 23R
E 3R


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4

Discuss the charge distribution on
(i) the surface of a solid conductor of irregular shape
(ii) a hollow conductor
(iii) a lightning conductor as clouds pass over its spikes.


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5

Resistors are components which are mainly used to ………..at different points in the circuit.


Fill in blanks
6

Which of the following is a symbol for a cell?

  1. Current electricity form two physicsa questions
  2. Current electricity questions form two physics
  3. Current electricity form 2 physics questions
  4. Current electricity form 2 physics questions

Multiple choices
7

Define the following

  1. An ammeter
  2. A voltmeter
  3. A resistor

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8

You are given a set of the following: a switch, a cell, an ammeter, a voltmeter, a resistor and connecting wires. Draw a complete circuit diagram to show the arrangement such
that the current can flow.


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9

A potential difference of 12 V is applied across a resistor of 120 Ω, the current in the
circuit is
A. 0.1 A
B. 10 A
C. 132 A
D. 440 A


Multiple choices
10
  1. State Ohm’s law.
  2. A cell of 8 V is connected in series with a resistor of 3 Ω. What is the value of the current through the resistor?

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