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SAI INTERNATIONAL SCHOOL
                                                      PHYSICS
                                                      CLASS X
                                             Chapter: ELECTRICITY
               Objective questions
               1. An electrical appliance has a resistance of 25 Ω. When this electrical appliance is
               connected to a 230 V supply line, the current passing through it will be:

               (a) 0.92 A


               (b) 2.9 A

               (c) 9.2 A


               (d) 92 A

               2. A battery of 10 volt carries 20,000 C of charge through a resistance of 20 Ω. The
               work done in 10 seconds is
               (a) 2 × 10 3 joule
                          5
               (b) 2 × 10 joule
                          4
               (c) 2 × 10  joule
                          2
               (d) 2 × 10  joule

               3. A boy records that 4000 joule of work is required to transfer 10 coulomb of charge
               between two points of a resistor of 50 Ω. The current passing through it is
               (a) 2 A
               (b) 4 A
               (c) 8 A
               (d) 16 A


               4. Two devices are connected between two points say A and B in parallel. The
               physical quantity that will remain the same between the two points is
               (a) current
               (b) voltage
               (c) resistance
               (d) None of these


               5. 1 mV is equal to:
               (a) 10 volt
               (b) 1000 volt
                      -3
               (c) 10  volt
                      -6
               (d) 10  volt
               6. 1 Volt is equal to:

               a) J/C
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