If there's any point in a circuit where the current has a choice
of which branch to take, then you have a <em>parallel circuit</em>.
The correct option is C. i.e. <span>Using more coils of wire
</span>
Explanation:
The strength of an electromagnet can be increased in the following ways:
1. By increasing the number of coils.
2. By increasing the current/voltage
3. Using an iron core, increases the strength of the electromagnet.
Velocity = displacement (distance)/time
v=80m/4s
v=20m/s
velocity = 20 meters per second
Explanation:
0.566kg *(1mol/0.197 kg)= 2.87 mol gold
note how the units cancel out, if the units do not cancel out (kg/kg=1) then u did something wrong
Answer:
A bird flies 75m in 15s.Calculate its speed
