Answer:
X is ammeter and Y is voltmeter
Explanation:
The resistance of a wire is directly proportional to the length of the wire. That is the longer the length of the wire, the higher the resistance and the shorter the length of the wire, the smaller the resistance.
Ammeter is a measuring instrument used to measure the current in a circuit by connecting the meter in series with the circuit.
Ammeter is a measuring instrument used to measure the potential difference between two points by connecting the meter in parallel to the points.
Meter X is an ammeter since it is connected in series and meter Y is a voltmeter because it is connected in parallel.
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Answer:
Time constant of RC circuit is 0.105 seconds.
Explanation:
It is given that,
Resistance, 
Capacitance, 
We need to find the expected time constant for this RC circuit. It can be calculated as :
So, the time constant for this RC circuit is 0.105 seconds. Hence, this is the required solution.
D is the answer. It is a firm statement.
First of all, we know that one mole is equal to the atomic number of an element.
The atomic number of gold is <span>197.0g Au
And we need to find 5 moles.
5 * 197.0 g Au = </span><span>985.0g
Grams is used to measure mass.
Answer: </span>985.0g
