Question

What should I choose ___________________

a. for decreasing resistance in a circuit.

(Resistors in series / Resistors in parallel)

b. for getting protection from electric current.

(Nickel / Ebonite)

c. to measure the current in the circuit?

(Ammeter/ Voltmeter) 

Answer 1

I should choose

1. Resistors in parallel for decreasing resistance in a circuit.
2. Ebonite for getting protection from electric current.
3. Ammeter to measure the current in the circuit.