AIEEE 2003 | Current Electricity Question 321 | Physics

The length of a given cylindrical wire is increased by $$100\% $$. Due to the consequent decrease in diameter the change in the resistance of the wire will be

$$200\% $$

$$100\% $$

$$50\% $$

$$300\% $$

AIEEE 2003

MCQ (Single Correct Answer)

-1

A $$220$$ volt, $$1000$$ watt bulb is connected across a $$110$$ $$volt$$ mains supply. The power consumed will be

$$750$$ watt

$$500$$ watt

$$250$$ watt

$$1000$$ watt

AIEEE 2003

MCQ (Single Correct Answer)

-1

A $$3$$ volt battery with negligible internal resistance is connected in a circuit as shown in the figure. The current $${\rm I}$$, in the circuit will be AIEEE 2003 Physics - Current Electricity Question 322 English

AIEEE 2003 Physics - Current Electricity Question 322 English

$$1$$ $$A$$

$$1.5$$ $$A$$

$$2$$ $$A$$

$$1/3$$ $$A$$

AIEEE 2003

MCQ (Single Correct Answer)

-1

The nagative $$Zn$$ pole of a Daniell cell, sending a constant current through a circuit, decreases in mass by $$0.13g$$ in $$30$$ minutes. If the electrochemical equivalent of $$Zn$$ and $$Cu$$ are $$32.5$$ and $$31.5$$ respectively, the increase in the mass of the positive $$Cu$$ pole in this time is

$$0.180$$ $$g$$

$$0.141$$ $$g$$

$$0.126$$ $$g$$

$$0.242$$ $$g$$

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