Sunday, May 17, 2009

CURRENT ELECTRICITY

LESSON-2 CURRENT ELECTRICITY TEST NO :1

3-Marks
1.Define Electromotive Force?
2.Define Electric Current?
3.State Ohms Laws?
4.Define Drift Velocity?
5.Define Mobility?
6.What Are Carbon Resistors?What Are Colour Code For Carbon
Resistors?
7.Define Resistance Of A Conductor?
8.Define Current Density ?
9.Define Tolerance?Give Examples ?
10.Define Wattmeter?
11.Define Internal Resiastance Of The Cell?
12.Define Super Conductor And Super Conductivity?
13.State Any Four Application Of Super Conductors?
14.Define Electrical Resistivity Of A Material?
15.Define Transition Or Critical Temperature ?
5-MARKS
1.state the application of super conductors ?
2.obtain the relation between current and drift velocity?
3.explain kirchoffs 1 law and it expression?
4.state and verify faradays 1 law of electrolysis ?
5.explain the reaction of electrodes of Daniel cell?
6.define electric power and electric energy?
7.explain the reaction of electrodes of lachlanche cell?

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