I think the correct answer from the choices listed above is the first option. An electromagnet is a temporary magnet because the magnet is only present when a current is present. <span>The </span>magnetic<span> field disappears when the </span>current<span> is </span>turned off<span>. Hope this answers the question. Have a nice day.</span>
Answer:
La palabra silueta se deriva del nombre de Étienne de Silhouette, una ministra de finanzas francesa que, en 1759, se vio obligada por la crisis crediticia de Francia durante la Guerra de los Siete Años a imponer severas demandas económicas al pueblo francés, particularmente a los ricos.
Explanation:
Answer:
d. All of the above .
Explanation:
The sensitivity of microphone will be more if even feeble sound can create greater vibration in diaphragm . Naturally it is possible if diaphragm is light and can move easily . The movement it it is controlled by current in the coil which makes it electromagnet . All factors that increase the strength of magnet like increasing the no of turns , or a strong magnet will increase the sensitivity.
Answer = 6.24x10^18 x ((2 x 3600) + (47 x 60) + 10)
