Answer:
(a) Measure flow of current
(b) If there's flow of current, measurement is non-zero figure but if there's no flow the reading on ammeter is zero
Explanation:
Weāll use ammeter to measure flow of current. In case it gives non-zero value, the light is an active element in our circuit but if itās zero, then the bulb isnāt good as it opens the circuit, leaving it open.
We also know that power and heat are related by
Pā[tex]RI^{2}[/tex]
Heatā[tex]RI^{2}t[/tex]