A positively-charged particle (alpha-particle) projected towards west is deflected towards north by a magnetic field.

Current carrying loops behave like bar magnets and both have their associated lines of field. This modifies the already existing earth’s magnetic field and a deflection results. Magnetic field has...

(a) (i) and (iii)

(a) Nucleus consists of proton and neutron. Proton has positive charge whereas neutron has no charge hence net charge on nucleus is positive. Nucleus is heavy because of the presence...

charged balloon is repelled by another charged balloon because both carry same charges and we know same charges repel each other whereas an uncharged balloon is attracted by charged balloon...

[Hint : K3[Fe(CN)6]]

The current carrying wire produces magnetic field around it. When a compass is kept nearby this wire, the two magnetic field (magnetic field due to wire and magnetic field due...

Since the positively charged particle (alpha-particle) projected towards west, so the direction of current is towards west. Now the deflection is towards north, so the force is towards north' Now...

(d) the information is insufficient to decide the relation of xA with xB. Explanation: Magnitude of displacement depends up on initial velocity, time Duration and acceleration. In this case only time is known while magnitude of initial velocity and acceleration...

(a) : Neutrons are electrically neutral. They are not deflected by magnetic field Hence (a) represents the answer.

(c) :- Opposite charges attract each other. Hence on mixing coagulation of two sols may be take place.