UNIT:7
Book: Chapter 13
Description: ( v.imp Theoretically and numerically
Topic)
ü Current:
Make clear understanding regarding conventional and
electric current. Read
article 13.1and 13.2. Effects of current are important. Example
13.1 is very important.
ü Ohm’s law:
Read article 13.4. Effect of temperature on resistance.
Memorize the definition of ohm’s law.
Dependence of resistance important.
Series and parallel combination of resistors. Memorize various formulae. Practice MCQS with variations.
ü Resistance and resistivity:
Read article 13. 5. Make clear concept regarding
specific resistance. Dependence of resistance is important.
ü Conductance and conductivity:
Effect of
temperature on resistance is important.Example 13.2 & figure 13.11 are
important.
ü Power dissipation in resistors:
Read 13.7. Relation of work with Voltage is
important. Practice various cases of power. Also do cases of brightness.
Consult notes and practice various MCQS.
Do article
“Max Power Output” too.
ü Electromotive force and potential difference:
Read article
13. Make clear understanding regarding internal resistance. Discuss different cases of charging
and discharging. Practice various formulae and MCQS. Figure 13.18, 13.9 ,13.19
important.
ü Kirchhoff’s rule:
Read complete article 13.9. Memorize
conventions. Memorize rules. Practice various cases. Consult with notes. Figure
13.20, 13.21 important.
ü Potentiometers:
Read article
13.9 and 13.10. Wheat stone concepts for
its understanding. Memorize conditions. Must consult notes. Practice various
MCQS.
ü Important topics:
Ohm ‘s law. Combination of resistors. Power
dissipation. Kirchhoff’s law.
ü Important Questions: 13.1,13.4,13.5,13.6,13.8
ü Important Problems:13.1,13.2,13.3,13.4,13.6,13.7.13.8
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