To convert a galvanometer into an ammeter, a
Correct answer: B. low resistance called a shunt is connected in parallel
- A. high resistance is connected in series
- B. low resistance called a shunt is connected in parallel
- C. high resistance is connected in parallel
- D. capacitor is connected in series
Explanation
The shunt carries most of the current so that only a small known fraction passes through the delicate coil, and it also keeps the overall resistance very low as an ammeter requires. Converting to a voltmeter is the opposite operation: a large resistance in series limits the current and gives the high resistance a voltmeter needs. Both conversions preserve the meter's own full scale deflection current.
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About Magnetic Flux Density
Magnetic flux density measures the magnetic force acting on a current carrying conductor or moving charge in a magnetic field. Work includes the relations B equals F divided by IL and F equals qvB, the tesla as its SI unit, field direction and the distinction between flux density and magnetic flux.
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