AIEEE 2002 | Current Electricity Question 329 | Physics

A wire when connected to $$220$$ $$V$$ mains supply has power dissipation $${P_1}.$$ Now the wire is cut into two equal pieces which are connected in parallel to the same supply. Power dissipation in this case is $${P_2}.$$ Then $${P_2}:{P_1}$$ is

$$1$$

$$4$$

$$2$$

$$3$$

AIEEE 2002

MCQ (Single Correct Answer)

-1

If $${\theta _1},$$ is the inversion temperature, $${\theta _n}$$ is the neutral temperature, $${\theta _c}$$ is the temperature of the cold junction, then

$${\theta _i} + {\theta _c} = {\theta _n}$$

$${\theta _i} - {\theta _c} = 2{\theta _n}$$

$${{{\theta _i} + {\theta _C}} \over 2} = {\theta _n}$$

$${\theta _c} - {\theta _i} = 2{\theta _n}$$

AIEEE 2002

MCQ (Single Correct Answer)

-1

The mass of product liberated on anode in an electrochemical cell depends on (where $$t$$ is the time period for which the current is passed).

$${\left( {It} \right)^{1/2}}$$

$$It$$

$$I/t$$

$${I^2}t$$