Get premium membership and access revision papers, questions with answers as well as video lessons.

Physics K.C.S.E Revision. Question Paper

Physics K.C.S.E Revision.

Course:Secondary Level

Exam Year:2009

CHAVAKALI HIGH SCHOOL.
PHYSICS K.C.S.E REVISION.

Topic: Current Electricity.

1. A fuse in the power supply of a transistor amplifier has a resistance of 0.02O. What current through the fuse will develop a 0.0005V drop across it?

2. What current will flow when a 0.00005V source is comebued to a 5-MO resistor?

3. What current will flow through a 2.2kO resistor connected across a 480-mV source?

4. What current must flow through a 6.8-kO voltage-dropping resistor to produce an 80-V drop across the resistor?

5. What voltage must be applied to a 220-kO bleeder resistance in a piece of electronic equipment if the bleeder current is to be 0.000020A?

6. What IR drop is produced by a 6-mA current passing through a 15-kO load resistor?

7. What voltage drop across the 2.2-kO collector load resistor of a transistor amplifier when the collector current is 1.8mA?

8. The operating coil of a relay, which is designed to energize with a current of 24 mA through the coil, has a resistance of 3.7 kO. What is the minimum applied voltage which will energize the relay?

9. An electric conductor with a diameter of 2.0 mm and a length of 80 m has a resistance of 0.44O. What is the resistance of the same material having a length of 50 m and a diameter of 0.8 mm?

10. An cylindrical electric conductor with a diameter of 1mm has a resistance of 1.72O/km of length. What is the resistance of 200 m of wire of the same material with a diameter of 0.4mm?

11. A conductor with diameter 0.1 mm and a length of 50 m has a resistance of 1.42 O. What length of wire of the same material with a diameter of 0.08 mm will have a resistance of 5.0 O?

12. A conductor 40m in length and having a diameter of 1.2 mm has a resistance of 17.3 O. What diameter of wise of the same material will have a resistance of 1.0 O per meter of length?

Physics K.C.S.E Revision. Question Paper

More Question Papers

Popular Exams

Mid Term Exams

End Term 1 Exams

End Term 3 Exams

Opener Exams

Full Set Exams