AIEEE 2006 | Semiconductor Question 190 | Physics

The circuit has two oppositively connected ideal diodes in parallel. What is the current following in the circuit?

AIEEE 2006 Physics - Semiconductor Question 182 English

AIEEE 2006 Physics - Semiconductor Question 182 English

$$1.71$$ $$A$$

$$2.00$$ $$A$$

$$2.31$$ $$A$$

$$1.33$$ $$A$$

AIEEE 2006

MCQ (Single Correct Answer)

-1

A solid which is not transparent to visible light and whose conductivity increases with temperature is formed by

Ionic bonding

Covalent bonding

Vander Waals bonding

Metallic bonding

AIEEE 2006

MCQ (Single Correct Answer)

-1

If the ratio of the concentration of electrons to that of holes in a semiconductor is $${7 \over 5}$$ and the ratio of currents is $${7 \over 4},$$ then what is the ratio of their drift velocities?

$${5 \over 8}$$

$${4 \over 5}$$

$${5 \over 4}$$

$${4 \over 7}$$

AIEEE 2005

MCQ (Single Correct Answer)

-1

The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than $$2480$$ $$nm$$ is incident on it. The band gap in $$(eV)$$ for the semiconductor is

$$2.5$$ $$eV$$

$$1.1$$ $$eV$$

$$0.7$$ $$eV$$

$$0.5$$ $$eV$$

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