1.Â Calculate the p.d. when Â

Â Â (a)Â A current of 6A flows through a resistor of 2.5 Î©,Â Â ______________________________Â Â

Â Â (b)Â A current of 20mA flows through a resistor of 1.8kÎ©, Â ____________________________

Â Â (c)Â A current of 50mA flows through a resistor of 0.5MÎ©, Â ____________________________

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2.Â Calculate theÂ *currentÂ *when Â

Â Â (a)Â A p.d. of 10V is applied across a resistor of 2.5Î©,Â Â ______________________________Â Â Â Â

Â Â (b)Â A p.d. of 6V is applied across a resistor of 2 kÎ©,Â Â Â Â Â _____________________________

â€‹Â Â (c)Â A p.d of 12V is applied across a resistor of 0.1MÎ©,Â Â _____________________________

3.Â Calculate theÂ *resistanceÂ *of a component if Â

Â Â (a)Â A p.d. of 12V produces a current of 0.5A, Â __________________________________

Â Â (b)Â A p.d. of 6V produces a current of 3 mA, Â __________________________________

Â Â (c) A p.d of 230V produces a current of 10ÂµAÂ _________________________________