9. Consider the digital multimeter below, with the set-up and reading as shown.
ID: 1770952 • Letter: 9
Question
9. Consider the digital multimeter below, with the set-up and reading as shown. State the exact value with the correct unit, of the reading on the DMM? 7.45 Reading = 10. What is the time constant for an RC circuit where the resistance is I kilo-ohms and the capacitance is 2 microfarads? (a) 2 seconds (b) 2 milliseconds (c) 0.5 seconds (d) 0.5 milliseconds 11. In an experiment to investigate the behavior of current in a discharge RC circuit, the symbol r in the equation l-/mne"RC or = "e‰ represents: (a) the time constant (b) the time it takes for the current in the circuit to drop to nearly zero (c) the time it takes for the voltage to drop by the fraction I/e of its initial value (d) the time it takes for the current to drop by the fraction (1- I/e) of its initial value (e) none of the above 12. For the given circuit, you are given that: R, 8 , R2 122, R-62,- 30 V,E 33 V, and 24V W All resistances are in ohm. Ignore the effect of the ammeter A on the circuit. How much current /i will+ flow through resistor Ri? Currents: I AmpsExplanation / Answer
9. Since one probe is in common junction and onther probe at mA junction, it means we are measuring Ampere/mili Ampere i.e Current.
Since the pointer is at 20mA and it is in between 20mA and 200mA, So we are measuring a current which is less than 20mA but gretaer than 200mA. Multi Meter redaing shows "7.45", this means we are measuring a current of 7.45 mA
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