What is the resistance of the bulb when it is on

Assignment Help Physics

Reference no: EM13492335

A high-intensity desk lamp is rated at 75 W, but its bulb requires only 9 V. The lamp contains a transformer that converts 110 V household electricity.

What is the current in the secondary winding of the transformer when the lamp is on?

What is the current in the primary winding when the lamp is on?

What is the resistance of the bulb when it is on?

Reference no: EM13492335

Questions Cloud

How long it takes to convert all of the water into steam : An electric kettle of 7.0 Ω resistance containing 500 cm3 of water at 10ºC is connected to the 110 V supply. calculate how long it takes to convert all of the water into steam

What is the impedance of the capacitor : A well-insulated 0.0423 µF capacitor is connected across a line carrying a 3.75 kV rms sinusoidal voltage with frequency 680 Hz. What is the impedance of the capacitor

An acetylcholine is a neurotransmitter and its concentration : Acetylcholine is a neurotransmitter and its concentration in the blood is quantitatively determined from the pH changes that accompany its hydrolysis by the enzyme, acetylcholinesterase

Journalize and post closing entries for december 31 : Journalize and post closing entries for December 31, 2011 and prepare a post-closing trial balance as of December 31, 2011.

What is the resistance of the bulb when it is on : A high-intensity desk lamp is rated at 75 W, but its bulb requires only 9 V. The lamp contains a transformer that converts 110 V household electricity. What is the resistance of the bulb when it is on

Use the contribution approach : The large buildup in sales before and during June is due to Father's Day. Ending inventories are supposed to equal 90% of the next month's sales in units. The ties cost the company $5 each.

Compute the magnitude of the force that the shopper exerts : A person pushes a 16.0 kg shopping cart at a constant velocity for a distance of 18.0 m. What is the magnitude of the force that the shopper exerts

Explain methyl-3-nitrobenzoate what is the theoretical yield : If 0.20mL of methyl benzoate and 0.45mL of concentrated (18M)sulfuric acid PLUS 0.15mL of concentrated (18M)sulfuric acid and 0.15mL concentrated (16M)nitric acid were added together and the end product was methyl-3-nitrobenzoate what is the theor..

By what factor does it change the current : A transformer has 683 turns in its primary winding and 109 in its secondary winding. Assuming it has 100 percent efficiency, By what factor does it change the current

User Account

All Pages