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What else can I help you with?
Can Electromagnets be turned on and off true or false?
An Electromagnet. Take a screwdriver, and a put 50 turns of wire round the screwdriver. Now connect one wire to positive and one wire to negative of a battery and try to pick up some paperclips.
What are some true statements for magnets and their poles?
The earth is an electromagnet. It has a north pole and a south pole. Apex: A magnet always has two poles, earth is a elecrtomagnet
Is it true that liquefaction forces squeeze or pull the rock in Earth's crust?
Yes, liquefaction forces can squeeze or pull the rock in Earth's crust. During an earthquake, liquefaction can occur when seismic waves cause water-saturated sediments to lose their strength, leading to the squeezing or pulling of rocks and sediments in the crust.
Is it true that the soil becomes more liquid and buildings can sink into it and collapse?
Yes, liquefaction can occur during earthquakes when saturated soil loses strength and stiffness due to increased water pressure and vibrations. This can cause buildings to sink or collapse if their foundation is compromised. Engineering techniques can help mitigate liquefaction risk in construction projects.
True or false is the point at which the moon is orbiting closest to earth called perigee?
True. Perigee is the point in the moon's orbit when it is closest to Earth.
True or False The strength of the magnetic poles in an electromagnet decreases with an increase in the number of turns of wire and the current flowing through them.?
False. The strength of the magnetic poles in an electromagnet increases with an increase in the number of turns of wire and the current flowing through them. This is because both factors contribute to a stronger magnetic field being generated by the electromagnet.
True or false an electromagnet must include a coil of wire?
A magnetic field is induced by pushing current though a wire; so you could consider a straight wire an electromagnet. Using more coils will strenghten the electromagnet, though, so a straight wire version will be very weak comparitively.
A stereo speakers uses an electromagnet to move the cone?
True .
True or false The device that turns a needle in a galvanometer is called an electromagnet.?
True. An electromagnet is used in a galvanometer to create a magnetic field that interacts with the current-carrying coil and causes the needle to move.
Is An electromagnet is a solenoid with a piece of ferromagnetic material within it?
True
Are there muscles in your fingers true or false?
True. Otherwise you wouldn't be able to move your fingers
An electromagnet is a solenoid with a piece of ferromagnetic material within it?
Yes, an electromagnet is created when a current passes through a coil of wire wrapped around a piece of ferromagnetic material, such as iron. The ferromagnetic material helps increase the strength of the magnetic field produced by the coil when it becomes magnetized.
What would happen if you placed a compass near an electromagnet?
The compass needle would align itself with the magnetic field produced by the electromagnet. The north-seeking end of the compass needle would point towards the south pole of the electromagnet, and vice versa.
Physical strength tends to decline in old age true or false?
It is true that physical strength tends to decline in old age.
True or false An oligarchy is a government controlled by a small group of people who receive their power from wealth social position or military strength.?
Almost: an oligarchy is a type of government controlled by a small group of very wealthy individuals who control the political process. Control of a government by military means is called a military dictatorship, while control of a government due to social position is now obsolete (think of the French nobles in the late1700's).
Which of the following statement about electromagnets is true?
Electromagnets are temporary magnets that are created when electric current flows through a wire coil. The strength of an electromagnet can be increased by increasing the number of turns in the wire coil, increasing the current flowing through the coil, or by using a ferromagnetic core material.
Gods of great strength were called Herculeans?
True
