<span>............D. Elliptical</span>
Explanation :
It is given that, q and 4q are placed at a distance of l.
Let x is the distance where third charge is placed so that the entire three charge system is in static equilibrium.
Equilibrium means the net force acting on the system of charges is equal to zero. Let Q is the third charge.
So,
On solving,
For magnitude :
using
So, a charge of -4q/9 is at a distance of l/3 is placed. It is placed to the right of +q.
If you take 50 meters and divide by 23.1 seconds, you will get 2.16 meters per second.
So his average speed is 2.16 m/s.
Here are the answers to the given questions above:
1. The one that is being described here is the E. Coli or the <span>Escherichia coli. This is the type of bacteria that is typically found along the intestinal tracts. Usually, people get E. Coli from their environment and may be ingested through foods.
2. The symptoms listed are commonly caused by an E. Coli infection. Usually, the body's mechanism in order to get rid of this bacteria is to have diarrhea and this may be bloody and watery. The answer would be option C.</span>
Answer:
Both the Technician A and Technician B are correct
Explanation:
According to Technician A, an ammeter measures current flow which is correct.
An ammeter is a device which measures the rate of flow of electrons constituting electric current that flows in a circuit.
According to Technician B, Ammeter must be connected in series in an electric circuit which is also correct.
In a circuit with parallel connections, voltage across each branch is same and current is distributed and is different in each branch.
In a series connected circuit, the potential drop, i.e., voltage across each connected element is different while the current in series is the same.
So, in order to measure the correct value of current flowing in the circuit, ammeter must be connected in series in the circuit.