Final Revision A) Choose the correct answer from those between brackets 1. If the length of a resistor is doubled and its cross-sectional area is decreased to half, then its resistance becomes ………….. a. Double its value c. Fixed b. 4 times its value d. 8 times its value 2. If the E.M.F. of a cell equals 10 volts, its terminal voltage when a current is flowing through its circuit equals………… a. 10 volt b. less than 10 volt c. greater than 10 volt 3. Two resistors are connected in parallel. One of them equals 1 ohm. Their equivalent resistance is …………….1 ohm. a. greater than b. equal to c. smaller than 4. In the electric circuit shown in the figure, if the reading of the ammeter (A1) was 6 ampere then the reading of the ammeter (A2) equal ………. ampere a. 2 b. 4 c. 6 d. 8 5. In the electric circuit shown in the figure. If the reading of the ammeter (A) is 4 ampere and the current passing through the resistance R1 is 1 ampere then the value of the resistance R2 is…….. ohm a. 2 b. 4 c. 6 d. 8
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3rd secondary