(a) A voltmeter is a galvanometer in which a high resistance is connected in series and an ammeter is a galvanometer in which low resistance is connected in parallel (called shunt of the ammeter). When all the voltmeter, ammeter and a resistance are connected in series to lead accumulator, the resistance of circuit becomes very high (because a voltmeter is a high resistance galvanometer). So, there is very low current in the circuit. When current is passed through the voltmeter, it produces some deflection. But in case of ammeter, the current passes through the shunt of the ammeter and not through the coil and hence produces no(or negligible) deflection.
(b) The values displayed by Ramesh:
(i) Presence of mind and general awareness
(ii) scientific thinking.
The value displayed by Harshpreet---
(i) Helping nature and
(ii) deep knowledge of the subject.

Honesty, helpfulness, responsible behaviour towards students, concern for the students, concern for the students to create interest in the subject.

(a) The values showed by Sheela were nature of appreciation, curiosity, diligence, and creative skill
(b)There are three magnetic elements of earth magnetic field.
(i) Declination at a place is the angle between magnetic and geographical meridian at that place.
(ii) Magnetic dip or inclination is the angle which the strength of earth's magnetic field makes with its horizontal component in the magnetic meridian.
(iii) Horizontal component of earth's magnetic field is the component of total intensity of earth's magnetic field in the horizontal direction in the magnetic meridian.