Ch 14 Physics Class 10

• Definition of current electricity: Symbol, Mathematical form, and Unit.
• Definition of Electric Circuit
• Definition of ampere and Submultiples of Ampere.
• Cause of current
• Definition of conventional current with example and also write its symbol mathematical form unit quantity nature and direction.
• Definition of Electronic Current with example and also write its symbol mathematical form unit quantity nature and direction.
• Differentiate between electronic current and conventional current.
• Definition of electromotive force and also writes its Abbreviation, Symbol, Mathematical form, and Unit.
• Definition of Source of EMF with Example
• Definition of Potential Difference with its Abbreviation Symbol, Mathematical form, and Unit.
• Differentiate between Potential Difference and Electromotive Force.
• Write History, Purpose, and Statement of Ohm's law and also write its Mathematical form, Circuit diagram, Graphical representation, and Limitation.
• Definition of Electrical Resistance with its Cause, Symbol, Mathematical form and Unit.
• Definition of Ohm with its symbol
• Write down the factors of resistance of a conducting wire.
• Definition of Resistivity and also write its Symbol, Mathematical form, Explanation, and Unit.
• Why the resistance of a conductor increases with the rise in temperature?
• Definition of Resistor
• Definition of constructive materials and also rights is a symbol and Explanation.
• Types of resistors: (i) Fixed resistors (ii) Variable resistors.
• Definition of Combination of Resistors.
• Describe the basic ways of Combination of a Resistors.
• Definition of Series Combination of Resistors.
• Characteristics of Series Combination of Resistor.
• Definition of Parallel Combination of Resistors.
• Characteristics of a Parallel Combination of Resistors.
• Definition of Conductors with examples and write its Cause.
• Definition of Insulators with examples and write its Cause.
• Definition of Ohmic conductors with examples and its Relation, Resistance, Graph.
• Definition of Non-Ohmic conductors with examples and its Relation, Resistance, Graph.
• Definition of Electric Energy
• History, Purpose, Statement of Joule's Law and also write its Mathematical form, Variation.
• Definition of electric power and also write its Symbol, Mathematical form, and Unit.
• Definition of kilowatt hours and also write its symbol.
• Uses of circuit components
• Definition of Fuse and also write its Other Name, Construction, and Uses.
• Definition of Earth (Ground) and also write its Other Name, Construction, and Uses.
• Definition of Switch and also write its Symbol in Circuit and Explanation.
• Definition of Electrical Measuring Instruments with Examples.
• Definition of galvanometer with its construction and working.
• Definition of Ammeter
• Conservation of galvanometer into ammeter.
• Working OR Measuring of current in circuit.
• Definition of Multimeter
• Definition of Direct Current and write its History, Abbreviation, Symbol, Frequency, Transmission, Measurement, Effect of transformer, Conversion, Symbol of source in circuit, Sources and Uses.
• Definition of  Alternating Current and write its History, Abbreviation, Symbol, Frequency, Transmission, Measurement, Effect of transformer, Conversion, Symbol of source in circuit, Sources and Uses.
• Definition of Fuse and rights its construction and symbol for Fuse in circuit and uses.
• Definition of Circuit breakers and rights its construction and symbol for Fuse in circuit and uses.
• Definition of Earth Wires and write its purpose and explanation.
• As water is made of atoms having protons ( charge +e) and electrons ( Charge -e), does the water flowing through pipe carry an electric current? Explain.
• A car has two headlights, when the filaments in one headlights burns out, the other headlight stays on. Are the headlights connected in series or in parallel.
• Qurat-Ul-Ain needs a 100 Ohm resistor for a circuit but she only has a box of 300 Ohm resistors. What can she do?
• A number of lights bulbs are connected to a single power outlet will they provide more illumination when connected in the series or in the parallel? Why?
• Explain why light bulbs almost always burn out just as they are turned on and after they have been on for some time?
• Explain why is it possible for birds to purchase safely on High Tension wires without being electrocuted?
• An electrician working on " Live " circuits have wears insulated issues and keeps one hand behind his on her back. Why?
• Explain why is it dangerous to turn on a light bulb when you are in both tub?
• Why circuit breaker, fuse and switches are installed to "Live Wire"?
• Solved Numerical of Current Electricity Ch 14 Physics Class 10 in KPK Boards
• A small electric heater has a resistance of 15 ohms when the current in it is 2 amperes. What voltage is required to produce this current?
• If a potential difference of 10 V is maintained across a 1 m long of the Nichrome wire having resistance of 3.1 2, what is the current in the wire?
• What resistor would have a 15 mA current if connected across the terminals of a 9.0 V battery?
• Consider a circuit with three resistor R₁ = 250.0 Ω, R2 = 150.0 Ω, R3 = 350.0 Ω connected in parallel with a 24.0 V battery. Find the total current supplied by the battery.
• An electric hair dryer is rated at 1,875 watts when operating on 120 volts. What is the current flowing through it? If the hair dryer is used for 3 minutes, how much energy does it consume?
• A battery with an emf of 12 V is connected to a 545 Ω resistor. How much energy is dissipated in the resistor in 65 s?
• If the unit of electricity cost 8.11 Rs/kWh, what is cost of running two 160 W fans and four 100 W light bulbs for 6 hours in school?