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Mdcat-past-papers Quiz

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1. 2×10⁶e passing through a conductor in 1 millisecond. Electric current through conductor is:



2. Three resistors each having value R are connected as shown in figure. What is the equivalence resistance between X and Y



3. Three 6Ω are connected as shown in the diagram. What is the resistance between points A and B?



4. If a resistor having resistance R is cut into three equal parts, then the equivalent of parallel combination is:



5. If 2A current passes through a resistor when connected to a certain battery. If the resistance is replaced by the double resistance, then the current will become:



6. A 3V battery is connected in series with ammeter and 2-ohm resistance after short-circuiting. What will be the reading of ammeter?



7. The ohmmeter of a portable digital multi-meter needs:



8. A charge of 90C passes through a wire for 30 seconds. Then the current in the wire will be:



9. The magnitude of the current in metals is proportional to the potential difference across it as long as the temperature of conductor is kept constant is known as:



10. Volt × Ampere is the measure of:



11. The ohm's law is applicable if:



12. Which of the following refers to the DC current that does not change its intensity?



13. The SI unit of electric charge:



14. Ohm-meter is the unit of:



15. The magnitude of the current in metals is proportional to the applied voltage as long as temperature of conductor is kept constant. It is the statement of:



16. Two electric bulbs "A" and "B" of powers 500W and 2000W respectively are connected to 220V supply. The ratio of current through A to current through B is:



17. In a conducting electric wire, the electric current flows due to:



18. The domestic electricity supply has a frequency of:



19. What does the Coulomb represent in terms of charge?



20. The I-V graph for a non-ohmic material is always: