Question
A (1) breaks the circuit if a fault in an appliance causes too much (2) to flow. 1: fuse; 2: current 1: fuse; 2: voltage 1: LDRs; 2: voltage 1: LDRS; 2: current
Answer
4
(306 Votes)
Xavier
Professional · Tutor for 6 years
Answer
1: fuse; 2 : current.
Explanation
The given question wants us to identify the correct devices and parameters related to insulating and protecting an electronic circuit. The prompt mentions an instrument that breaks the circuit upon exposure to an overwhelming fault resulting in too much _flow_ of a certain thing.Option 1 offers 'fuse' and 'current'; option 2 suggests 'fuse' and 'voltage'; while options 3 and 4 propose 'LDRs' as the circuit-breaking device with either 'voltage' or 'current' as the offending factors.Valuating each choice, 'LDRs' (Light Dependent Resistors) are sensitive to fluctuations in light intensity, incapable of handling faults based on the magnitude of current or voltage, thus excluding Options 3 and 4 from consideration.Next, we must distinguish between sub-options in the first and second options, which denote either 'current' or 'voltage' as the overbearing parameter causing the fault. Reviewing our fundamental understanding of these concepts, we discern that 'current' refers to the flow of electric charge, while 'voltage' pertains to the electric potential difference forcing the charge to move or flow as current.Now, relating these elemental apprehensions to the context of our question, it is evident that an overwhelming flow (high current), will trigger a fault and force the fuse to break open the circuit for safety reasons rather than voltage, which lately was identified as the driving force for the current. A 'fuse' blows or breaks the circuit when the 'current' becomes overly high due to any malfunction thereby maintaining safety.Drawing a definitive inference above, the accurate conjunction is observed to be 'fuse' and 'current': A 'fuse' breaks a circuit if too much 'current' flows through it, likely causing a fault.