What is the significance of measuring low resistances

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Electrical Measurements Questions -

Q1. Low resistance refers to

a) resistances of the order of 1?

b) resistances of the order of 1k?

c) resistances of the order of 1m?

d) resistances of the order of 1M?

Q2. What is the significance of measuring low resistances?

a) voltage drop across the circuit is high

b) contact and lead resistances are appreciable

c) there is no power loss

d) no current flows through the bridge circuit

Q3. Fig represents

1933_figure.jpg

a) construction of medium resistance

b) construction of high resistance

c) construction of low resistance

d) construction of very low resistance

Q4. In fig the terminals aa' are used for

957_figure1.jpg

a) measuring the current flow through the circuit

b) measuring the power dissipation of the circuit

c) measuring the resistance of the circuit

d) measuring the voltage drop across the resistance      

Q5. In fig the value of I is

1667_figure2.jpg

a) I = IV+Ir

b) I = IV-Ir

c) I = IVIr

d) I = IV/Ir

Reference no: EM132585984

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