Measurement and Instrumentation What is the approximate input impedance of a CRO? 1 MΩ 100 MΩ 0 10 MΩ 1 MΩ 100 MΩ 0 10 MΩ ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When using ohmmeter, applied voltage is to be disconnected from the circuit because Current will decrease resistance The ohmmeter has its own internal battery Voltage source will increase resistance None of these Current will decrease resistance The ohmmeter has its own internal battery Voltage source will increase resistance None of these ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Resistances can be measured with the help of Voltmeters Ammeters Ohmmeters and resistance bridges Wattmeters Voltmeters Ammeters Ohmmeters and resistance bridges Wattmeters ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A resistor of 10kΩhms with 5% tolerance is connected in parallel with a 5kΩhms resistor of 10% tolerance. What is the tolerance limit for the parallel network? 5% 10% 6.67% 8.33% 5% 10% 6.67% 8.33% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A resistance of 105 ohms is specified using significant figures as indicated below : 1. 105 ohms 2. 105.0 ohms 3. 0.000105 mega ohms Among these, 2 and 3 represent greater precision than 1. 2 represents greater precision but 1 and 3 represent same precision. 1 represents greater precision than 2 and 3. 1, 2 and 3 represent same precision. 2 and 3 represent greater precision than 1. 2 represents greater precision but 1 and 3 represent same precision. 1 represents greater precision than 2 and 3. 1, 2 and 3 represent same precision. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the name of physical quantities which are independent of each other? Fundamental quantity Numerical quantity None of these Derived quantity Fundamental quantity Numerical quantity None of these Derived quantity ANSWER DOWNLOAD EXAMIANS APP
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