Give reason:  Water is preferred as heater in hot water hag than other liquids.

1. Thermochromic liquids are ones which change colour with temperature. 2. These liquids are very sensitive to temperature, especially in range of room temperature. 3. Hence, only specific liquids display distinct colour...

1. Normally solids and liquids expand on heating. Hence their volume increases on heating. 2. Since the mass is constant, it results in a decrease in the density on heating. 3. Water...

1. When hot water is poured in a glass beaker the inner surface of the glass expends on heating. 2. Since glass is a bad conductor of heat, the heat from...

Given: P = 2 kW = 2000 W, V = 300 V To find: Current (I) Formula: P = IV Calculation: From formula, I = \(\frac{P}{V}=\frac{2000}{300}\) = 6.67 A

Given: I = 6 A, V = 230 V, t = 5 hours To find: Power (P), Energy consumed Formulae: i. P = IV ii. Energy consumed = power × time Calculation: From formula...

Given: I = 6 A, V = 220 volt, t = 2 hour To find: i. Power of heater (P) ii. Electric energy consumed (E) Formulae: i. P = IV ii. Electric energy consumed =...

No donor is required for transfusion, no transfusion facilities, no risk of transfusion related infection (any two)  OR  The maintenance of growth of cells under laboratory conditions in suitable culture medium is...

C) R1 and R2 

C) more surface area

B) latent heat of vapourisation