5volt is supplied to an electrical circuit. if the resistance of the circuit is 2.5ohms ,calculate the current flowing through the circuit.

Current = (voltage) / (resistance)  <== the formula (from Ohm's law)

Current = (5 volts) / (2.5 ohms)       <== the work

Current = 2 Amperes                     <== the solution

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.