Electricity starter Standard symbol Name of component Battery Lamp LED Drawing G Editing Voice Se • Match the symbols and write information about each one.

R2 R3 3. Fill out the table for the circuit diagrammed at the right. Circuit Voltage (V) Current (A) Resistance (Q) Power (W) Position 1 0.10 10.0 0.1 2.0 20.0 0.2 3. 0.10 30.0 0.3 Total 6.0 0.10

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Holiday Homework (WORK SHEET) CLASS-Xth Sub- Physics Compare resistor the power used in the 20 in each of the following circuite: (1) a 6V battery in series with 122 and 2-2 resistors (11) a 4V battery in parallel with 12 and 2-22 resistors 02 Define Mesistance Give its SI unit. 03 On what factors does the resistana of a conductor depend 04 A given length of a wire is doubled on itself By what factor does the resis -tana of the wire change' 45 བྱ།། A 5_02 raistor is connected асчоль а battery of 6V calculate (i) the current flowing (i) the energy that through dissipates the resistor as heat in 06 الله 10 s. Find following the current electric faldasing through the cincuit m 2-22 mm 6-2 +THE (•) чу ༅། 07 why are metals good conductors of electricity whereas gland is a bad conductor of electricity? Give reason. why оче alloys Commonly used in electrical heating devices? Give reason Q9 State two properties of charge. 410 A piece of wine of resistana 20-2 18 drawn out 80 that its length is…

Which of the following are both base units in the S.I. system of units? A ampere and metre B coulomb and second 1. C volt and kilogram D ohm and kelvin

2. What happens to the electrical signal as it reaches the radio receiver? * It generates a low-frequency electrical signals and low voltage It generates a high-frequency electrical signals and high voltage It generates a low-frequency electrical signals but is high in voltage. It generates a high-frequency electrical signals but is low in voltage.

Compare and contrast

6) Given three LEDS, connected in series as shown in the Circuit #2 (below), calculate the value of the resistance Rled_series to ensure that the current Itotal in the circuit is 10 mA. ww- Rled_series * RED_LED Vdc0 GREEN_LE U = 12 V * BLUE_LEC Circuit #2

11

6.