Question Discussion & Solution

S.I. Unit of Pressure is Pascal,

Similarly,

S.I. Unit of Current is Ampere.

Concept:

• Electric current is the rate of flow electric charge or free Electrons in a definite direction through any section of wire. Its SI unit is ampere(A).
• The direction of the conventional current corresponds to the direction of positive charge which is from higher potential(positive) to lower potential(negative).

I = Q / t

I is current, Q is charge, t is time

Explanation:

Q = I t

So Charge is the product of current and time.

Unit of current is Ampere, and unit of time is an hour. 

So, Amount of charge or Quantity of electricity is Ampere-hour 

The positions of the letters according to the English alphabet series:

The pattern for this code is as follows;

Similarly;

Hence, "HFIZG" is the correct answer.

Shortcut Trick

Shortcut to remember the reverse positional letters.

Here the pattern is,

1. Three friends, Vinitha, Mira and Neethu, had lunch at a hotel.

2. When the bill was received, Vinitha paid 2/3 as much as Mira paid and Mira paid 1/2 as much as Neethu paid.

Vinitha = Mira       ---(i)

Mira =  Neethu

2 Mira = Neethu       ---(ii)

As, the total bill was divided among them

So, Vinitha + Mira + Neethu = 1       ---(iii)

Substituting the value of (i) and (ii) in (iii), we get:

Mira + Mira + 2 Mira = 1

Mira = 3/11