Q. 234.6( 5 Votes )
Observing that th
(i)The defection in the magnetic compass indicates that current is flowing through the circuit. The compass needle deflects due to magnetic effect produced by the current.
(ii) the bulb did not glow in circuit A because the current passing through circuit is weak. if the current through the circuit is weak, the filament of the bulb does not get heated sufficiently and it does not glow. This indicates the solution is weak conductor of electricity.
(iii) when we increase the number of turns in the coil wound around the magnetic compass, the magnetic field produced due to current through the circuit increases and deflection in the needle in the compass increases.
(iv) increase in number of cells would increase the voltage across the circuit and would increase the current flowing through circuit. This will result in more increase in deflection of needle in magnetic compass.
Rate this question :
Observing that thNCERT - Science Exemplar
You are providedNCERT - Science Exemplar
Boojho made the cNCERT - Science Exemplar
In the circuit giNCERT - Science Exemplar
Paheli wants to dNCERT - Science Exemplar
Observe Fig. 14.5NCERT - Science Exemplar
Boojho and PaheliNCERT - Science Exemplar
Which of the follNCERT - Science Exemplar
Which one of theNCERT - Science Exemplar
Boojho’s uncle haNCERT - Science Exemplar