A pure resistance and a pure inductance are connected in series across a 100 volt. A.C. line. A voltmeter gives same reading whether connected across resistance or inductance. What does it read ?

An inductance and a resistance are connected in series with an AC potential . In this circuit

A 600 Omega resistor and a 400 Omega resistor are connected in series across a 90-volt line. A voltmeter acros the 600Omega resistor reads 45V. What is the value of the voltmeter resistance? If the same voltmeter is connected across the 400Omega resistor, what will be its reading?

A coil of negligible resistance is connected in series with 90 Omega resistor across a 120 V - 60 Hz line. A voltmeter reads 36 V across the resistance. Find the voltage across the coil and Inductance of the coil

A resistance R and an inductance L are connected in series in an a.c. circut. If omega is the angular frequency of the source, then the power factor is given by

Assertion: An inductance and a resistance are connected in series with an AC circuit. In this circuit the current and the potential difference across the resistance lag behind potential difference across the inductance by an angle pi//2 . Reason: In LR circuit voltage leads the current by phase angle which depends on the value of inductance and resistance both.

A voltmeter of resistance R_1 and an ammeter of resistance R_2 are connected in series across a battery oif negligible internal resistance. When as resistance R is connected in parallel to voltmeter reading of ammeter increases three times white that of voltmeter reduces to one third. Find R_1 and R_2 in terms of R .

A coil of negligible resistance is connected inseries with 90 Omega resistor acorss a 120 V -60 Hz line. A voltmeter reads 36 V across the resistance. Find voltage across the coil and inductance of the coil.

A resistor, an inductance and a capacitance are connected in series toan a.c. supply. When measured with the help of an a.c. voltmeter, the p.d. across the resistor is found to be 40V, across the inductance 30V, and across the capacitance 60V. What is the supply voltage?