which of the following is the central band of the United kingdom?

Determine the resistance value and tolerance of a resistor that has the following color bands; first band is red, second band is red, third band is orange, and the fourth band is gold

A

220 Ohm, 5%

B

220 Ohm, 10%

C

22,000 Ohm, 5%

D

22, 000 Ohm, 10%

E

None of the above

What was United Kingdom's rank in 2016 Human Development Index published by the United Nations Development Programme?

A

4

B

16

C

64

D

256

what is the name of the Central Bank of United Kingdom?

A

Bank of England

B

Reserve Band of UK

C

Federal of Bank of UK

D

Royal Bank of Uk

সুপরিবাহী পদার্থে Valence Band এবং conduction band-

A

আলাদা থাকে

B

ওভারল্যাপ থাকে

C

অনেক দূরে থাকে

D

কোনটিই নয়

The forbidden energy gap between the valence band and conduction band will be least in case of

A

Metals

B

Semiconductors

C

Insulators

D

All of the above

A band-pass filter rejects all frequencies within a band between a lower and an upper critical frequency and passes all others.

A

True

B

False

The bandwidth of C-band satellite frequency band in U.S.

A

500 GHz

B

1000 GHz

C

1000 MHz

D

500 MHz

The current due to electron flow in conduction band is the hole current in valence band.

A

Equal to

B

Less than

C

Greater than

D

Any of the above

In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where $$\mu $$ = Coefficient of friction between the blocks and the drum, $$\theta $$ = Semi-angle of each block subtending at the center of drum and n = Number of blocks)

A

$$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = \mu \theta {\text{n}}$$

B

$$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = {\left( {\frac{{1 - \mu \tan \theta }}{{1 + \mu \tan \theta }}} \right)^{\text{n}}}$$

C

$$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = {\left( {\mu \theta } \right)^{\text{n}}}$$

D

$$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = {\left( {\frac{{1 + \mu \tan \theta }}{{1 - \mu \tan \theta }}} \right)^{\text{n}}}$$

In a band and block brake, the ratio of tensions on the tight and slack sides of band is given by (where $$\mu $$ = Coefficient of friction between the blocks and the drum, $$\theta $$ = Semi-angle of each block subtending at the centre of drum and n = Number of blocks)

A

$$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_{\text{2}}}}} = \mu \theta \times {\text{n}}$$

B

$$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = {\left( {\mu \theta } \right)^{\text{n}}}$$

C

$$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = {\left( {\frac{{1 - \mu \tan \theta }}{{1 + \mu \tan \theta }}} \right)^{\text{n}}}$$

D

$$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = {\left( {\frac{{1 + \mu \tan \theta }}{{1 - \mu \tan \theta }}} \right)^{\text{n}}}$$

which of the following is the central band of the United kingdom?

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