A certain thermocouple (treat is as a seat of emf) which has a total resistance of 10 `Omega` has one junction in melting ice and the other in stream

A certain thermocouple (treat is as a seat of emf) which has a total resistance of 10 `Omega` has one junction in melting ice and the other in stream .The emf between its ends as measured by a potentiometer is 4 mV. What would be its reading when it is connected to mellivoltmeter which has a resistance of 5`Omega`?

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct Answer - 3.33 m V

4 views Answered 2023-02-05 15:29

Related Questions

The emf `varepsilon` of a Cu-Fe thermocouple varies with the temperature `theta` of the hot junction (cold junction at `0^(@)C` ), as `varepsilon(mu V

2 Answers 7 Views

If `y_(1)=max||z-omega|-|z-omega^(2)||`, where `|z|=2` and `y_(2)=max||z-omega|-|z-omega^(2)||`, where `|z|=(1)/(2)` and `omega` and `omega^(2)` are c

2 Answers 5 Views

A battery of emf 6V internal resistance 5`Omega` is joined in parallel with another cell of emf of 10V and internal resistance `1Omega` and the combin

2 Answers 5 Views

The cold junction of a thermocouple is kept at `10^(@)`C. Calculate the temperature at which thermo emf would be maximum. Given that thermo emf change

2 Answers 6 Views

The themo emf of a copper-constantan thermocouple is `40muV.^(@)C^(-1)` at room temperature. A galvanometer whose resistance is `80 Omega` and current

2 Answers 4 Views

The thermo emf of a copper-constantan thermocouple with one junction at `0^(@)C` and the other at `t^(@)C` is given by the relation `varepsilon=at=(1)

2 Answers 5 Views

The emf in a lead-iron thermocouple , one junction of which is at `t^(@)C` is given by `varepsilon=178t-2.4t^(2)( "in "muV)` where t is the temperatur

2 Answers 5 Views

The thermo emf of a thermocouple is `40 mu V K^(-1)` at room temperature. A galvanometer of resistance `100 Omega` capable of detecting current as law

2 Answers 5 Views

A thermocouple with one junction at ice-point , has emf given by the relation, `varepsilon =atheta+(1)/(2)btheta^(@)` , where `theta^(@)C` is the temp

2 Answers 5 Views

A 20 V battery of internal resistance `1 Omega` is connected to three coils of `12 Omega, 6 Omega` and `4 Omega` in parallel, a resistor of `5Omega` a

2 Answers 5 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)